15603920

素因数分解:

$2^4\times 5^1\times {\mathrm{195049}}^1$

素因数の和:195062

約数の個数: 20

約数和(自身を含む): 36279300

約数和(自身を除く): 20675380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195049, 390098, 780196, 975245, 1560392, 1950490, 3120784, 3900980, 7801960, 15603920]

約数ペア:

[(1, 15603920), (2, 7801960), (4, 3900980), (5, 3120784), (8, 1950490), (10, 1560392), (16, 975245), (20, 780196), (40, 390098), (80, 195049)]