858505420

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{119569}}^1$

素因数の和:119937

約数の個数: 24

約数和(自身を含む): 1807898400

約数和(自身を除く): 949392980

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 119569, 239138, 478276, 597845, 1195690, 2391380, 42925271, 85850542, 171701084, 214626355, 429252710, 858505420]

約数ペア:

[(1, 858505420), (2, 429252710), (4, 214626355), (5, 171701084), (10, 85850542), (20, 42925271), (359, 2391380), (718, 1195690), (1436, 597845), (1795, 478276), (3590, 239138), (7180, 119569)]