31307380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120413}}^1$

素因数の和:120435

約数の個数: 24

約数和(自身を含む): 70803432

約数和(自身を除く): 39496052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120413, 240826, 481652, 602065, 1204130, 1565369, 2408260, 3130738, 6261476, 7826845, 15653690, 31307380]

約数ペア:

[(1, 31307380), (2, 15653690), (4, 7826845), (5, 6261476), (10, 3130738), (13, 2408260), (20, 1565369), (26, 1204130), (52, 602065), (65, 481652), (130, 240826), (260, 120413)]