31612780

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1949}}^1$

素因数の和:2769

約数の個数: 24

約数和(自身を含む): 66502800

約数和(自身を除く): 34890020

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 1949, 3244, 3898, 4055, 7796, 8110, 9745, 16220, 19490, 38980, 1580639, 3161278, 6322556, 7903195, 15806390, 31612780]

約数ペア:

[(1, 31612780), (2, 15806390), (4, 7903195), (5, 6322556), (10, 3161278), (20, 1580639), (811, 38980), (1622, 19490), (1949, 16220), (3244, 9745), (3898, 8110), (4055, 7796)]