21162960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:75

約数の個数: 480

約数和(自身を含む): 97493760

約数和(自身を除く): 76330800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 24, 26, 28, 30, 34, 35, 36, 38, 39, 40, 42, 45, 48, 51, 52, 56, 57, 60, 63, 65, 68, 70, 72, 76, 78, 80, 84, 85, 90, 91, 95, 102, 104, 105, 112, 114, 117, 119, 120, 126, 130, 133, 136, 140, 144, 152, 153, 156, 168, 170, 171, 180, 182, 190, 195, 204, 208, 210, 221, 228, 234, 238, 240, 247, 252, 255, 260, 266, 272, 273, 280, 285, 304, 306, 312, 315, 323, 336, 340, 342, 357, 360, 364, 380, 390, 399, 408, 420, 442, 455, 456, 468, 476, 494, 504, 510, 520, 532, 546, 560, 570, 585, 595, 612, 624, 630, 646, 663, 665, 680, 684, 714, 720, 728, 741, 760, 765, 780, 798, 816, 819, 840, 855, 884, 910, 912, 936, 952, 969, 988, 1008, 1020, 1040, 1064, 1071, 1092, 1105, 1140, 1170, 1190, 1197, 1224, 1235, 1260, 1292, 1326, 1330, 1360, 1365, 1368, 1428, 1456, 1482, 1520, 1530, 1547, 1560, 1596, 1615, 1638, 1680, 1710, 1729, 1768, 1785, 1820, 1872, 1904, 1938, 1976, 1989, 1995, 2040, 2128, 2142, 2184, 2210, 2223, 2261, 2280, 2340, 2380, 2394, 2448, 2470, 2520, 2584, 2652, 2660, 2730, 2736, 2856, 2907, 2964, 3060, 3094, 3120, 3192, 3230, 3276, 3315, 3420, 3458, 3536, 3570, 3640, 3705, 3876, 3952, 3978, 3990, 4080, 4095, 4199, 4284, 4368, 4420, 4446, 4522, 4560, 4641, 4680, 4760, 4788, 4845, 4940, 5040, 5168, 5187, 5304, 5320, 5355, 5460, 5712, 5814, 5928, 5985, 6120, 6188, 6384, 6460, 6552, 6630, 6783, 6840, 6916, 7140, 7280, 7410, 7735, 7752, 7956, 7980, 8190, 8398, 8568, 8645, 8840, 8892, 9044, 9282, 9360, 9520, 9576, 9690, 9880, 9945, 10374, 10608, 10640, 10710, 10920, 11115, 11305, 11628, 11856, 11970, 12240, 12376, 12597, 12920, 13104, 13260, 13566, 13680, 13832, 13923, 14280, 14535, 14820, 15470, 15504, 15561, 15912, 15960, 16380, 16796, 17136, 17290, 17680, 17784, 18088, 18564, 19152, 19380, 19760, 19890, 20349, 20748, 20995, 21420, 21840, 22230, 22610, 23205, 23256, 23940, 24752, 25194, 25840, 25935, 26520, 27132, 27664, 27846, 28560, 29070, 29393, 29640, 30940, 31122, 31824, 31920, 32760, 33592, 33915, 34580, 35568, 36176, 37128, 37791, 38760, 39780, 40698, 41496, 41990, 42840, 44460, 45220, 46410, 46512, 47880, 50388, 51870, 53040, 54264, 55692, 58140, 58786, 59280, 61880, 62244, 62985, 65520, 67184, 67830, 69160, 69615, 74256, 75582, 77520, 77805, 79560, 81396, 82992, 83980, 85680, 88179, 88920, 90440, 92820, 95760, 100776, 101745, 103740, 108528, 111384, 116280, 117572, 123760, 124488, 125970, 135660, 138320, 139230, 146965, 151164, 155610, 159120, 162792, 167960, 176358, 177840, 180880, 185640, 188955, 201552, 203490, 207480, 222768, 232560, 235144, 248976, 251940, 264537, 271320, 278460, 293930, 302328, 311220, 325584, 335920, 352716, 371280, 377910, 406980, 414960, 440895, 470288, 503880, 529074, 542640, 556920, 587860, 604656, 622440, 705432, 755820, 813960, 881790, 1007760, 1058148, 1113840, 1175720, 1244880, 1322685, 1410864, 1511640, 1627920, 1763580, 2116296, 2351440, 2645370, 3023280, 3527160, 4232592, 5290740, 7054320, 10581480, 21162960]

約数ペア:

[(1, 21162960), (2, 10581480), (3, 7054320), (4, 5290740), (5, 4232592), (6, 3527160), (7, 3023280), (8, 2645370), (9, 2351440), (10, 2116296), (12, 1763580), (13, 1627920), (14, 1511640), (15, 1410864), (16, 1322685), (17, 1244880), (18, 1175720), (19, 1113840), (20, 1058148), (21, 1007760), (24, 881790), (26, 813960), (28, 755820), (30, 705432), (34, 622440), (35, 604656), (36, 587860), (38, 556920), (39, 542640), (40, 529074), (42, 503880), (45, 470288), (48, 440895), (51, 414960), (52, 406980), (56, 377910), (57, 371280), (60, 352716), (63, 335920), (65, 325584), (68, 311220), (70, 302328), (72, 293930), (76, 278460), (78, 271320), (80, 264537), (84, 251940), (85, 248976), (90, 235144), (91, 232560), (95, 222768), (102, 207480), (104, 203490), (105, 201552), (112, 188955), (114, 185640), (117, 180880), (119, 177840), (120, 176358), (126, 167960), (130, 162792), (133, 159120), (136, 155610), (140, 151164), (144, 146965), (152, 139230), (153, 138320), (156, 135660), (168, 125970), (170, 124488), (171, 123760), (180, 117572), (182, 116280), (190, 111384), (195, 108528), (204, 103740), (208, 101745), (210, 100776), (221, 95760), (228, 92820), (234, 90440), (238, 88920), (240, 88179), (247, 85680), (252, 83980), (255, 82992), (260, 81396), (266, 79560), (272, 77805), (273, 77520), (280, 75582), (285, 74256), (304, 69615), (306, 69160), (312, 67830), (315, 67184), (323, 65520), (336, 62985), (340, 62244), (342, 61880), (357, 59280), (360, 58786), (364, 58140), (380, 55692), (390, 54264), (399, 53040), (408, 51870), (420, 50388), (442, 47880), (455, 46512), (456, 46410), (468, 45220), (476, 44460), (494, 42840), (504, 41990), (510, 41496), (520, 40698), (532, 39780), (546, 38760), (560, 37791), (570, 37128), (585, 36176), (595, 35568), (612, 34580), (624, 33915), (630, 33592), (646, 32760), (663, 31920), (665, 31824), (680, 31122), (684, 30940), (714, 29640), (720, 29393), (728, 29070), (741, 28560), (760, 27846), (765, 27664), (780, 27132), (798, 26520), (816, 25935), (819, 25840), (840, 25194), (855, 24752), (884, 23940), (910, 23256), (912, 23205), (936, 22610), (952, 22230), (969, 21840), (988, 21420), (1008, 20995), (1020, 20748), (1040, 20349), (1064, 19890), (1071, 19760), (1092, 19380), (1105, 19152), (1140, 18564), (1170, 18088), (1190, 17784), (1197, 17680), (1224, 17290), (1235, 17136), (1260, 16796), (1292, 16380), (1326, 15960), (1330, 15912), (1360, 15561), (1365, 15504), (1368, 15470), (1428, 14820), (1456, 14535), (1482, 14280), (1520, 13923), (1530, 13832), (1547, 13680), (1560, 13566), (1596, 13260), (1615, 13104), (1638, 12920), (1680, 12597), (1710, 12376), (1729, 12240), (1768, 11970), (1785, 11856), (1820, 11628), (1872, 11305), (1904, 11115), (1938, 10920), (1976, 10710), (1989, 10640), (1995, 10608), (2040, 10374), (2128, 9945), (2142, 9880), (2184, 9690), (2210, 9576), (2223, 9520), (2261, 9360), (2280, 9282), (2340, 9044), (2380, 8892), (2394, 8840), (2448, 8645), (2470, 8568), (2520, 8398), (2584, 8190), (2652, 7980), (2660, 7956), (2730, 7752), (2736, 7735), (2856, 7410), (2907, 7280), (2964, 7140), (3060, 6916), (3094, 6840), (3120, 6783), (3192, 6630), (3230, 6552), (3276, 6460), (3315, 6384), (3420, 6188), (3458, 6120), (3536, 5985), (3570, 5928), (3640, 5814), (3705, 5712), (3876, 5460), (3952, 5355), (3978, 5320), (3990, 5304), (4080, 5187), (4095, 5168), (4199, 5040), (4284, 4940), (4368, 4845), (4420, 4788), (4446, 4760), (4522, 4680), (4560, 4641)]