30687620

素因数分解:

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

素因数の和:21691

約数の個数: 24

約数和(自身を含む): 65354688

約数和(自身を除く): 34667068

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21611, 43222, 86444, 108055, 216110, 432220, 1534381, 3068762, 6137524, 7671905, 15343810, 30687620]

約数ペア:

[(1, 30687620), (2, 15343810), (4, 7671905), (5, 6137524), (10, 3068762), (20, 1534381), (71, 432220), (142, 216110), (284, 108055), (355, 86444), (710, 43222), (1420, 21611)]