20528760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24439}}^1$

素因数の和:24460

約数の個数: 64

約数和(自身を含む): 70387200

約数和(自身を除く): 49858440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24439, 48878, 73317, 97756, 122195, 146634, 171073, 195512, 244390, 293268, 342146, 366585, 488780, 513219, 586536, 684292, 733170, 855365, 977560, 1026438, 1368584, 1466340, 1710730, 2052876, 2566095, 2932680, 3421460, 4105752, 5132190, 6842920, 10264380, 20528760]

約数ペア:

[(1, 20528760), (2, 10264380), (3, 6842920), (4, 5132190), (5, 4105752), (6, 3421460), (7, 2932680), (8, 2566095), (10, 2052876), (12, 1710730), (14, 1466340), (15, 1368584), (20, 1026438), (21, 977560), (24, 855365), (28, 733170), (30, 684292), (35, 586536), (40, 513219), (42, 488780), (56, 366585), (60, 342146), (70, 293268), (84, 244390), (105, 195512), (120, 171073), (140, 146634), (168, 122195), (210, 97756), (280, 73317), (420, 48878), (840, 24439)]