217346960

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{25391}}^1$

素因数の和:25511

約数の個数: 40

約数和(自身を含む): 510074496

約数和(自身を除く): 292727536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 25391, 50782, 101564, 126955, 203128, 253910, 406256, 507820, 1015640, 2031280, 2716837, 5433674, 10867348, 13584185, 21734696, 27168370, 43469392, 54336740, 108673480, 217346960]

約数ペア:

[(1, 217346960), (2, 108673480), (4, 54336740), (5, 43469392), (8, 27168370), (10, 21734696), (16, 13584185), (20, 10867348), (40, 5433674), (80, 2716837), (107, 2031280), (214, 1015640), (428, 507820), (535, 406256), (856, 253910), (1070, 203128), (1712, 126955), (2140, 101564), (4280, 50782), (8560, 25391)]