860420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3911}}^1$

素因数の和:3931

約数の個数: 24

約数和(自身を含む): 1971648

約数和(自身を除く): 1111228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3911, 7822, 15644, 19555, 39110, 43021, 78220, 86042, 172084, 215105, 430210, 860420]

約数ペア:

[(1, 860420), (2, 430210), (4, 215105), (5, 172084), (10, 86042), (11, 78220), (20, 43021), (22, 39110), (44, 19555), (55, 15644), (110, 7822), (220, 3911)]