13656520

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1531}}^1$

素因数の和:1765

約数の個数: 32

約数和(自身を含む): 30885120

約数和(自身を除く): 17228600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1531, 1784, 2230, 3062, 4460, 6124, 7655, 8920, 12248, 15310, 30620, 61240, 341413, 682826, 1365652, 1707065, 2731304, 3414130, 6828260, 13656520]

約数ペア:

[(1, 13656520), (2, 6828260), (4, 3414130), (5, 2731304), (8, 1707065), (10, 1365652), (20, 682826), (40, 341413), (223, 61240), (446, 30620), (892, 15310), (1115, 12248), (1531, 8920), (1784, 7655), (2230, 6124), (3062, 4460)]