28321020

素因数分解:

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

素因数の和:74

約数の個数: 324

約数和(自身を含む): 113906520

約数和(自身を除く): 85585500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 30, 35, 36, 38, 39, 42, 45, 49, 52, 57, 60, 63, 65, 70, 76, 78, 84, 90, 91, 95, 98, 105, 114, 117, 126, 130, 133, 140, 147, 156, 169, 171, 180, 182, 190, 195, 196, 210, 228, 234, 245, 247, 252, 260, 266, 273, 285, 294, 315, 338, 342, 364, 380, 390, 399, 420, 441, 455, 468, 490, 494, 507, 532, 546, 570, 585, 588, 630, 637, 665, 676, 684, 735, 741, 780, 798, 819, 845, 855, 882, 910, 931, 980, 988, 1014, 1092, 1140, 1170, 1183, 1197, 1235, 1260, 1274, 1330, 1365, 1470, 1482, 1521, 1596, 1638, 1690, 1710, 1729, 1764, 1820, 1862, 1911, 1995, 2028, 2205, 2223, 2340, 2366, 2394, 2470, 2535, 2548, 2660, 2730, 2793, 2940, 2964, 3042, 3185, 3211, 3276, 3380, 3420, 3458, 3549, 3705, 3724, 3822, 3990, 4095, 4410, 4446, 4655, 4732, 4788, 4940, 5070, 5187, 5460, 5586, 5733, 5915, 5985, 6084, 6370, 6422, 6916, 7098, 7410, 7605, 7644, 7980, 8190, 8281, 8379, 8645, 8820, 8892, 9310, 9555, 9633, 10140, 10374, 10647, 11115, 11172, 11466, 11830, 11970, 12103, 12740, 12844, 13965, 14196, 14820, 15210, 15561, 16055, 16380, 16562, 16758, 17290, 17745, 18620, 19110, 19266, 20748, 21294, 22230, 22477, 22932, 23660, 23940, 24206, 24843, 25935, 27930, 28665, 28899, 30420, 31122, 32110, 33124, 33516, 34580, 35490, 36309, 38220, 38532, 41405, 41895, 42588, 44460, 44954, 48165, 48412, 49686, 51870, 53235, 55860, 57330, 57798, 60515, 62244, 64220, 67431, 70980, 72618, 74529, 77805, 82810, 83790, 89908, 96330, 99372, 103740, 106470, 108927, 112385, 114660, 115596, 121030, 124215, 134862, 144495, 145236, 149058, 155610, 157339, 165620, 167580, 181545, 192660, 202293, 212940, 217854, 224770, 242060, 248430, 269724, 288990, 298116, 311220, 314678, 337155, 363090, 372645, 404586, 435708, 449540, 472017, 496860, 544635, 577980, 629356, 674310, 726180, 745290, 786695, 809172, 944034, 1011465, 1089270, 1348620, 1416051, 1490580, 1573390, 1888068, 2022930, 2178540, 2360085, 2832102, 3146780, 4045860, 4720170, 5664204, 7080255, 9440340, 14160510, 28321020]

約数ペア:

[(1, 28321020), (2, 14160510), (3, 9440340), (4, 7080255), (5, 5664204), (6, 4720170), (7, 4045860), (9, 3146780), (10, 2832102), (12, 2360085), (13, 2178540), (14, 2022930), (15, 1888068), (18, 1573390), (19, 1490580), (20, 1416051), (21, 1348620), (26, 1089270), (28, 1011465), (30, 944034), (35, 809172), (36, 786695), (38, 745290), (39, 726180), (42, 674310), (45, 629356), (49, 577980), (52, 544635), (57, 496860), (60, 472017), (63, 449540), (65, 435708), (70, 404586), (76, 372645), (78, 363090), (84, 337155), (90, 314678), (91, 311220), (95, 298116), (98, 288990), (105, 269724), (114, 248430), (117, 242060), (126, 224770), (130, 217854), (133, 212940), (140, 202293), (147, 192660), (156, 181545), (169, 167580), (171, 165620), (180, 157339), (182, 155610), (190, 149058), (195, 145236), (196, 144495), (210, 134862), (228, 124215), (234, 121030), (245, 115596), (247, 114660), (252, 112385), (260, 108927), (266, 106470), (273, 103740), (285, 99372), (294, 96330), (315, 89908), (338, 83790), (342, 82810), (364, 77805), (380, 74529), (390, 72618), (399, 70980), (420, 67431), (441, 64220), (455, 62244), (468, 60515), (490, 57798), (494, 57330), (507, 55860), (532, 53235), (546, 51870), (570, 49686), (585, 48412), (588, 48165), (630, 44954), (637, 44460), (665, 42588), (676, 41895), (684, 41405), (735, 38532), (741, 38220), (780, 36309), (798, 35490), (819, 34580), (845, 33516), (855, 33124), (882, 32110), (910, 31122), (931, 30420), (980, 28899), (988, 28665), (1014, 27930), (1092, 25935), (1140, 24843), (1170, 24206), (1183, 23940), (1197, 23660), (1235, 22932), (1260, 22477), (1274, 22230), (1330, 21294), (1365, 20748), (1470, 19266), (1482, 19110), (1521, 18620), (1596, 17745), (1638, 17290), (1690, 16758), (1710, 16562), (1729, 16380), (1764, 16055), (1820, 15561), (1862, 15210), (1911, 14820), (1995, 14196), (2028, 13965), (2205, 12844), (2223, 12740), (2340, 12103), (2366, 11970), (2394, 11830), (2470, 11466), (2535, 11172), (2548, 11115), (2660, 10647), (2730, 10374), (2793, 10140), (2940, 9633), (2964, 9555), (3042, 9310), (3185, 8892), (3211, 8820), (3276, 8645), (3380, 8379), (3420, 8281), (3458, 8190), (3549, 7980), (3705, 7644), (3724, 7605), (3822, 7410), (3990, 7098), (4095, 6916), (4410, 6422), (4446, 6370), (4655, 6084), (4732, 5985), (4788, 5915), (4940, 5733), (5070, 5586), (5187, 5460)]