90438520

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2549}}^1$

素因数の和:3447

約数の個数: 32

約数和(自身を含む): 203796000

約数和(自身を除く): 113357480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 2549, 3548, 4435, 5098, 7096, 8870, 10196, 12745, 17740, 20392, 25490, 35480, 50980, 101960, 2260963, 4521926, 9043852, 11304815, 18087704, 22609630, 45219260, 90438520]

約数ペア:

[(1, 90438520), (2, 45219260), (4, 22609630), (5, 18087704), (8, 11304815), (10, 9043852), (20, 4521926), (40, 2260963), (887, 101960), (1774, 50980), (2549, 35480), (3548, 25490), (4435, 20392), (5098, 17740), (7096, 12745), (8870, 10196)]