20928780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12919}}^1$

素因数の和:12940

約数の個数: 60

約数和(自身を含む): 65659440

約数和(自身を除く): 44730660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12919, 25838, 38757, 51676, 64595, 77514, 116271, 129190, 155028, 193785, 232542, 258380, 348813, 387570, 465084, 581355, 697626, 775140, 1046439, 1162710, 1395252, 1744065, 2092878, 2325420, 3488130, 4185756, 5232195, 6976260, 10464390, 20928780]

約数ペア:

[(1, 20928780), (2, 10464390), (3, 6976260), (4, 5232195), (5, 4185756), (6, 3488130), (9, 2325420), (10, 2092878), (12, 1744065), (15, 1395252), (18, 1162710), (20, 1046439), (27, 775140), (30, 697626), (36, 581355), (45, 465084), (54, 387570), (60, 348813), (81, 258380), (90, 232542), (108, 193785), (135, 155028), (162, 129190), (180, 116271), (270, 77514), (324, 64595), (405, 51676), (540, 38757), (810, 25838), (1620, 12919)]