56987620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21751}}^1$

素因数の和:21891

約数の個数: 24

約数和(自身を含む): 120593088

約数和(自身を除く): 63605468

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 21751, 43502, 87004, 108755, 217510, 435020, 2849381, 5698762, 11397524, 14246905, 28493810, 56987620]

約数ペア:

[(1, 56987620), (2, 28493810), (4, 14246905), (5, 11397524), (10, 5698762), (20, 2849381), (131, 435020), (262, 217510), (524, 108755), (655, 87004), (1310, 43502), (2620, 21751)]