208028680

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{47713}}^1$

素因数の和:47833

約数の個数: 32

約数和(自身を含む): 472368600

約数和(自身を除く): 264339920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 47713, 95426, 190852, 238565, 381704, 477130, 954260, 1908520, 5200717, 10401434, 20802868, 26003585, 41605736, 52007170, 104014340, 208028680]

約数ペア:

[(1, 208028680), (2, 104014340), (4, 52007170), (5, 41605736), (8, 26003585), (10, 20802868), (20, 10401434), (40, 5200717), (109, 1908520), (218, 954260), (436, 477130), (545, 381704), (872, 238565), (1090, 190852), (2180, 95426), (4360, 47713)]