201565580

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{5171}}^1$

素因数の和:7129

約数の個数: 24

約数和(自身を含む): 423586800

約数和(自身を除く): 222021220

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 5171, 7796, 9745, 10342, 19490, 20684, 25855, 38980, 51710, 103420, 10078279, 20156558, 40313116, 50391395, 100782790, 201565580]

約数ペア:

[(1, 201565580), (2, 100782790), (4, 50391395), (5, 40313116), (10, 20156558), (20, 10078279), (1949, 103420), (3898, 51710), (5171, 38980), (7796, 25855), (9745, 20684), (10342, 19490)]