2005405900

素因数分解:

$2^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{134591}}^1$

素因数の和:134754

約数の個数: 36

約数和(自身を含む): 4380969600

約数和(自身を除く): 2375563700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 149, 298, 596, 745, 1490, 2980, 3725, 7450, 14900, 134591, 269182, 538364, 672955, 1345910, 2691820, 3364775, 6729550, 13459100, 20054059, 40108118, 80216236, 100270295, 200540590, 401081180, 501351475, 1002702950, 2005405900]

約数ペア:

[(1, 2005405900), (2, 1002702950), (4, 501351475), (5, 401081180), (10, 200540590), (20, 100270295), (25, 80216236), (50, 40108118), (100, 20054059), (149, 13459100), (298, 6729550), (596, 3364775), (745, 2691820), (1490, 1345910), (2980, 672955), (3725, 538364), (7450, 269182), (14900, 134591)]