18257320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26849}}^1$

素因数の和:26877

約数の個数: 32

約数和(自身を含む): 43497000

約数和(自身を除く): 25239680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26849, 53698, 107396, 134245, 214792, 268490, 456433, 536980, 912866, 1073960, 1825732, 2282165, 3651464, 4564330, 9128660, 18257320]

約数ペア:

[(1, 18257320), (2, 9128660), (4, 4564330), (5, 3651464), (8, 2282165), (10, 1825732), (17, 1073960), (20, 912866), (34, 536980), (40, 456433), (68, 268490), (85, 214792), (136, 134245), (170, 107396), (340, 53698), (680, 26849)]