205775420

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{5279}}^1$

素因数の和:7237

約数の個数: 24

約数和(自身を含む): 432432000

約数和(自身を除く): 226656580

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 5279, 7796, 9745, 10558, 19490, 21116, 26395, 38980, 52790, 105580, 10288771, 20577542, 41155084, 51443855, 102887710, 205775420]

約数ペア:

[(1, 205775420), (2, 102887710), (4, 51443855), (5, 41155084), (10, 20577542), (20, 10288771), (1949, 105580), (3898, 52790), (5279, 38980), (7796, 26395), (9745, 21116), (10558, 19490)]