20207380

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6781}}^1$

素因数の和:6939

約数の個数: 24

約数和(自身を含む): 42726600

約数和(自身を除く): 22519220

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6781, 13562, 27124, 33905, 67810, 135620, 1010369, 2020738, 4041476, 5051845, 10103690, 20207380]

約数ペア:

[(1, 20207380), (2, 10103690), (4, 5051845), (5, 4041476), (10, 2020738), (20, 1010369), (149, 135620), (298, 67810), (596, 33905), (745, 27124), (1490, 13562), (2980, 6781)]