2146520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 4885920

約数和(自身を除く): 2739400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 521, 824, 1030, 1042, 2060, 2084, 2605, 4120, 4168, 5210, 10420, 20840, 53663, 107326, 214652, 268315, 429304, 536630, 1073260, 2146520]

約数ペア:

[(1, 2146520), (2, 1073260), (4, 536630), (5, 429304), (8, 268315), (10, 214652), (20, 107326), (40, 53663), (103, 20840), (206, 10420), (412, 5210), (515, 4168), (521, 4120), (824, 2605), (1030, 2084), (1042, 2060)]