18446980

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1621}}^1$

素因数の和:2199

約数の個数: 24

約数和(自身を含む): 38830680

約数和(自身を除く): 20383700

約数列:

[1, 2, 4, 5, 10, 20, 569, 1138, 1621, 2276, 2845, 3242, 5690, 6484, 8105, 11380, 16210, 32420, 922349, 1844698, 3689396, 4611745, 9223490, 18446980]

約数ペア:

[(1, 18446980), (2, 9223490), (4, 4611745), (5, 3689396), (10, 1844698), (20, 922349), (569, 32420), (1138, 16210), (1621, 11380), (2276, 8105), (2845, 6484), (3242, 5690)]