12858520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3121}}^1$

素因数の和:3235

約数の個数: 32

約数和(自身を含む): 29221920

約数和(自身を除く): 16363400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3121, 4120, 6242, 12484, 15605, 24968, 31210, 62420, 124840, 321463, 642926, 1285852, 1607315, 2571704, 3214630, 6429260, 12858520]

約数ペア:

[(1, 12858520), (2, 6429260), (4, 3214630), (5, 2571704), (8, 1607315), (10, 1285852), (20, 642926), (40, 321463), (103, 124840), (206, 62420), (412, 31210), (515, 24968), (824, 15605), (1030, 12484), (2060, 6242), (3121, 4120)]