20459670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:566

約数の個数: 128

約数和(自身を含む): 64945152

約数和(自身を除く): 44485482

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 17, 21, 22, 30, 33, 34, 35, 42, 51, 55, 66, 70, 77, 85, 102, 105, 110, 119, 154, 165, 170, 187, 210, 231, 238, 255, 330, 357, 374, 385, 462, 510, 521, 561, 595, 714, 770, 935, 1042, 1122, 1155, 1190, 1309, 1563, 1785, 1870, 2310, 2605, 2618, 2805, 3126, 3570, 3647, 3927, 5210, 5610, 5731, 6545, 7294, 7815, 7854, 8857, 10941, 11462, 13090, 15630, 17193, 17714, 18235, 19635, 21882, 26571, 28655, 34386, 36470, 39270, 40117, 44285, 53142, 54705, 57310, 61999, 80234, 85965, 88570, 97427, 109410, 120351, 123998, 132855, 171930, 185997, 194854, 200585, 240702, 265710, 292281, 309995, 371994, 401170, 487135, 584562, 601755, 619990, 681989, 929985, 974270, 1203510, 1363978, 1461405, 1859970, 2045967, 2922810, 3409945, 4091934, 6819890, 10229835, 20459670]

約数ペア:

[(1, 20459670), (2, 10229835), (3, 6819890), (5, 4091934), (6, 3409945), (7, 2922810), (10, 2045967), (11, 1859970), (14, 1461405), (15, 1363978), (17, 1203510), (21, 974270), (22, 929985), (30, 681989), (33, 619990), (34, 601755), (35, 584562), (42, 487135), (51, 401170), (55, 371994), (66, 309995), (70, 292281), (77, 265710), (85, 240702), (102, 200585), (105, 194854), (110, 185997), (119, 171930), (154, 132855), (165, 123998), (170, 120351), (187, 109410), (210, 97427), (231, 88570), (238, 85965), (255, 80234), (330, 61999), (357, 57310), (374, 54705), (385, 53142), (462, 44285), (510, 40117), (521, 39270), (561, 36470), (595, 34386), (714, 28655), (770, 26571), (935, 21882), (1042, 19635), (1122, 18235), (1155, 17714), (1190, 17193), (1309, 15630), (1563, 13090), (1785, 11462), (1870, 10941), (2310, 8857), (2605, 7854), (2618, 7815), (2805, 7294), (3126, 6545), (3570, 5731), (3647, 5610), (3927, 5210)]