64937020

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{11981}}^1$

素因数の和:12261

約数の個数: 24

約数和(自身を含む): 136882368

約数和(自身を除く): 71945348

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 11981, 23962, 47924, 59905, 119810, 239620, 3246851, 6493702, 12987404, 16234255, 32468510, 64937020]

約数ペア:

[(1, 64937020), (2, 32468510), (4, 16234255), (5, 12987404), (10, 6493702), (20, 3246851), (271, 239620), (542, 119810), (1084, 59905), (1355, 47924), (2710, 23962), (5420, 11981)]