161978040

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:259

約数の個数: 384

約数和(自身を含む): 673920000

約数和(自身を除く): 511941960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 19, 20, 21, 24, 28, 30, 34, 35, 36, 38, 40, 42, 45, 51, 56, 57, 60, 63, 68, 70, 72, 76, 84, 85, 90, 95, 102, 105, 114, 119, 120, 126, 133, 136, 140, 152, 153, 168, 170, 171, 180, 190, 199, 204, 210, 228, 238, 252, 255, 266, 280, 285, 306, 315, 323, 340, 342, 357, 360, 380, 398, 399, 408, 420, 456, 476, 504, 510, 532, 570, 595, 597, 612, 630, 646, 665, 680, 684, 714, 760, 765, 796, 798, 840, 855, 952, 969, 995, 1020, 1064, 1071, 1140, 1190, 1194, 1197, 1224, 1260, 1292, 1330, 1368, 1393, 1428, 1530, 1592, 1596, 1615, 1710, 1785, 1791, 1938, 1990, 1995, 2040, 2142, 2261, 2280, 2380, 2388, 2394, 2520, 2584, 2660, 2786, 2856, 2907, 2985, 3060, 3192, 3230, 3383, 3420, 3570, 3582, 3781, 3876, 3980, 3990, 4179, 4284, 4522, 4760, 4776, 4788, 4845, 5320, 5355, 5572, 5814, 5970, 5985, 6120, 6460, 6766, 6783, 6840, 6965, 7140, 7164, 7562, 7752, 7960, 7980, 8358, 8568, 8955, 9044, 9576, 9690, 10149, 10710, 11144, 11305, 11343, 11628, 11940, 11970, 12537, 12920, 13532, 13566, 13930, 14280, 14328, 14535, 15124, 15960, 16716, 16915, 17910, 18088, 18905, 19380, 20298, 20349, 20895, 21420, 22610, 22686, 23256, 23681, 23880, 23940, 25074, 26467, 27064, 27132, 27860, 29070, 30248, 30447, 33432, 33830, 33915, 34029, 35820, 37810, 38760, 40596, 40698, 41790, 42840, 45220, 45372, 47362, 47880, 50148, 50745, 52934, 54264, 55720, 56715, 58140, 60894, 62685, 64277, 67660, 67830, 68058, 71043, 71640, 75620, 79401, 81192, 81396, 83580, 90440, 90744, 94724, 100296, 101490, 101745, 105868, 113430, 116280, 118405, 121788, 125370, 128554, 132335, 135320, 135660, 136116, 142086, 151240, 152235, 158802, 162792, 167160, 170145, 189448, 192831, 202980, 203490, 211736, 213129, 226860, 236810, 238203, 243576, 250740, 257108, 264670, 271320, 272232, 284172, 304470, 317604, 321385, 340290, 355215, 385662, 397005, 405960, 406980, 426258, 449939, 453720, 473620, 476406, 501480, 514216, 529340, 568344, 578493, 608940, 635208, 642770, 680580, 710430, 771324, 794010, 813960, 852516, 899878, 947240, 952812, 964155, 1058680, 1065645, 1156986, 1191015, 1217880, 1285540, 1349817, 1361160, 1420860, 1542648, 1588020, 1705032, 1799756, 1905624, 1928310, 2131290, 2249695, 2313972, 2382030, 2571080, 2699634, 2841720, 2892465, 3176040, 3599512, 3856620, 4049451, 4262580, 4499390, 4627944, 4764060, 5399268, 5784930, 6749085, 7713240, 8098902, 8525160, 8998780, 9528120, 10798536, 11569860, 13498170, 16197804, 17997560, 20247255, 23139720, 26996340, 32395608, 40494510, 53992680, 80989020, 161978040]

約数ペア:

[(1, 161978040), (2, 80989020), (3, 53992680), (4, 40494510), (5, 32395608), (6, 26996340), (7, 23139720), (8, 20247255), (9, 17997560), (10, 16197804), (12, 13498170), (14, 11569860), (15, 10798536), (17, 9528120), (18, 8998780), (19, 8525160), (20, 8098902), (21, 7713240), (24, 6749085), (28, 5784930), (30, 5399268), (34, 4764060), (35, 4627944), (36, 4499390), (38, 4262580), (40, 4049451), (42, 3856620), (45, 3599512), (51, 3176040), (56, 2892465), (57, 2841720), (60, 2699634), (63, 2571080), (68, 2382030), (70, 2313972), (72, 2249695), (76, 2131290), (84, 1928310), (85, 1905624), (90, 1799756), (95, 1705032), (102, 1588020), (105, 1542648), (114, 1420860), (119, 1361160), (120, 1349817), (126, 1285540), (133, 1217880), (136, 1191015), (140, 1156986), (152, 1065645), (153, 1058680), (168, 964155), (170, 952812), (171, 947240), (180, 899878), (190, 852516), (199, 813960), (204, 794010), (210, 771324), (228, 710430), (238, 680580), (252, 642770), (255, 635208), (266, 608940), (280, 578493), (285, 568344), (306, 529340), (315, 514216), (323, 501480), (340, 476406), (342, 473620), (357, 453720), (360, 449939), (380, 426258), (398, 406980), (399, 405960), (408, 397005), (420, 385662), (456, 355215), (476, 340290), (504, 321385), (510, 317604), (532, 304470), (570, 284172), (595, 272232), (597, 271320), (612, 264670), (630, 257108), (646, 250740), (665, 243576), (680, 238203), (684, 236810), (714, 226860), (760, 213129), (765, 211736), (796, 203490), (798, 202980), (840, 192831), (855, 189448), (952, 170145), (969, 167160), (995, 162792), (1020, 158802), (1064, 152235), (1071, 151240), (1140, 142086), (1190, 136116), (1194, 135660), (1197, 135320), (1224, 132335), (1260, 128554), (1292, 125370), (1330, 121788), (1368, 118405), (1393, 116280), (1428, 113430), (1530, 105868), (1592, 101745), (1596, 101490), (1615, 100296), (1710, 94724), (1785, 90744), (1791, 90440), (1938, 83580), (1990, 81396), (1995, 81192), (2040, 79401), (2142, 75620), (2261, 71640), (2280, 71043), (2380, 68058), (2388, 67830), (2394, 67660), (2520, 64277), (2584, 62685), (2660, 60894), (2786, 58140), (2856, 56715), (2907, 55720), (2985, 54264), (3060, 52934), (3192, 50745), (3230, 50148), (3383, 47880), (3420, 47362), (3570, 45372), (3582, 45220), (3781, 42840), (3876, 41790), (3980, 40698), (3990, 40596), (4179, 38760), (4284, 37810), (4522, 35820), (4760, 34029), (4776, 33915), (4788, 33830), (4845, 33432), (5320, 30447), (5355, 30248), (5572, 29070), (5814, 27860), (5970, 27132), (5985, 27064), (6120, 26467), (6460, 25074), (6766, 23940), (6783, 23880), (6840, 23681), (6965, 23256), (7140, 22686), (7164, 22610), (7562, 21420), (7752, 20895), (7960, 20349), (7980, 20298), (8358, 19380), (8568, 18905), (8955, 18088), (9044, 17910), (9576, 16915), (9690, 16716), (10149, 15960), (10710, 15124), (11144, 14535), (11305, 14328), (11343, 14280), (11628, 13930), (11940, 13566), (11970, 13532), (12537, 12920)]