20616640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5857}}^1$

素因数の和:5885

約数の個数: 56

約数和(自身を含む): 53565552

約数和(自身を除く): 32948912

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5857, 11714, 23428, 29285, 46856, 58570, 64427, 93712, 117140, 128854, 187424, 234280, 257708, 322135, 374848, 468560, 515416, 644270, 937120, 1030832, 1288540, 1874240, 2061664, 2577080, 4123328, 5154160, 10308320, 20616640]

約数ペア:

[(1, 20616640), (2, 10308320), (4, 5154160), (5, 4123328), (8, 2577080), (10, 2061664), (11, 1874240), (16, 1288540), (20, 1030832), (22, 937120), (32, 644270), (40, 515416), (44, 468560), (55, 374848), (64, 322135), (80, 257708), (88, 234280), (110, 187424), (160, 128854), (176, 117140), (220, 93712), (320, 64427), (352, 58570), (440, 46856), (704, 29285), (880, 23428), (1760, 11714), (3520, 5857)]