206747620

素因数分解:

$2^2\times 5^1\times {\mathrm{1597}}^1\times {\mathrm{6473}}^1$

素因数の和:8079

約数の個数: 24

約数和(自身を含む): 434508984

約数和(自身を除く): 227761364

約数列:

[1, 2, 4, 5, 10, 20, 1597, 3194, 6388, 6473, 7985, 12946, 15970, 25892, 31940, 32365, 64730, 129460, 10337381, 20674762, 41349524, 51686905, 103373810, 206747620]

約数ペア:

[(1, 206747620), (2, 103373810), (4, 51686905), (5, 41349524), (10, 20674762), (20, 10337381), (1597, 129460), (3194, 64730), (6388, 32365), (6473, 31940), (7985, 25892), (12946, 15970)]