61375240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21611}}^1$

素因数の和:21693

約数の個数: 32

約数和(自身を含む): 140045760

約数和(自身を除く): 78670520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 21611, 43222, 86444, 108055, 172888, 216110, 432220, 864440, 1534381, 3068762, 6137524, 7671905, 12275048, 15343810, 30687620, 61375240]

約数ペア:

[(1, 61375240), (2, 30687620), (4, 15343810), (5, 12275048), (8, 7671905), (10, 6137524), (20, 3068762), (40, 1534381), (71, 864440), (142, 432220), (284, 216110), (355, 172888), (568, 108055), (710, 86444), (1420, 43222), (2840, 21611)]