18146960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17449}}^1$

素因数の和:17475

約数の個数: 40

約数和(自身を含む): 45439800

約数和(自身を除く): 27292840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17449, 34898, 69796, 87245, 139592, 174490, 226837, 279184, 348980, 453674, 697960, 907348, 1134185, 1395920, 1814696, 2268370, 3629392, 4536740, 9073480, 18146960]

約数ペア:

[(1, 18146960), (2, 9073480), (4, 4536740), (5, 3629392), (8, 2268370), (10, 1814696), (13, 1395920), (16, 1134185), (20, 907348), (26, 697960), (40, 453674), (52, 348980), (65, 279184), (80, 226837), (104, 174490), (130, 139592), (208, 87245), (260, 69796), (520, 34898), (1040, 17449)]