15923920

素因数分解:

$2^4\times 5^1\times {\mathrm{199049}}^1$

素因数の和:199062

約数の個数: 20

約数和(自身を含む): 37023300

約数和(自身を除く): 21099380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199049, 398098, 796196, 995245, 1592392, 1990490, 3184784, 3980980, 7961960, 15923920]

約数ペア:

[(1, 15923920), (2, 7961960), (4, 3980980), (5, 3184784), (8, 1990490), (10, 1592392), (16, 995245), (20, 796196), (40, 398098), (80, 199049)]