139215620

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{7901}}^1$

素因数の和:8791

約数の個数: 24

約数和(自身を含む): 292721688

約数和(自身を除く): 153506068

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 7901, 8810, 15802, 17620, 31604, 39505, 79010, 158020, 6960781, 13921562, 27843124, 34803905, 69607810, 139215620]

約数ペア:

[(1, 139215620), (2, 69607810), (4, 34803905), (5, 27843124), (10, 13921562), (20, 6960781), (881, 158020), (1762, 79010), (3524, 39505), (4405, 31604), (7901, 17620), (8810, 15802)]