15920420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{27449}}^1$

素因数の和:27487

約数の個数: 24

約数和(自身を含む): 34587000

約数和(自身を除く): 18666580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 27449, 54898, 109796, 137245, 274490, 548980, 796021, 1592042, 3184084, 3980105, 7960210, 15920420]

約数ペア:

[(1, 15920420), (2, 7960210), (4, 3980105), (5, 3184084), (10, 1592042), (20, 796021), (29, 548980), (58, 274490), (116, 137245), (145, 109796), (290, 54898), (580, 27449)]