31994020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22531}}^1$

素因数の和:22611

約数の個数: 24

約数和(自身を含む): 68136768

約数和(自身を除く): 36142748

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 22531, 45062, 90124, 112655, 225310, 450620, 1599701, 3199402, 6398804, 7998505, 15997010, 31994020]

約数ペア:

[(1, 31994020), (2, 15997010), (4, 7998505), (5, 6398804), (10, 3199402), (20, 1599701), (71, 450620), (142, 225310), (284, 112655), (355, 90124), (710, 45062), (1420, 22531)]