18491260

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1429}}^1$

素因数の和:2085

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 20427620

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1429, 2588, 2858, 3235, 5716, 6470, 7145, 12940, 14290, 28580, 924563, 1849126, 3698252, 4622815, 9245630, 18491260]

約数ペア:

[(1, 18491260), (2, 9245630), (4, 4622815), (5, 3698252), (10, 1849126), (20, 924563), (647, 28580), (1294, 14290), (1429, 12940), (2588, 7145), (2858, 6470), (3235, 5716)]