20237680

素因数分解:

$2^4\times 5^1\times {\mathrm{252971}}^1$

素因数の和:252984

約数の個数: 20

約数和(自身を含む): 47052792

約数和(自身を除く): 26815112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252971, 505942, 1011884, 1264855, 2023768, 2529710, 4047536, 5059420, 10118840, 20237680]

約数ペア:

[(1, 20237680), (2, 10118840), (4, 5059420), (5, 4047536), (8, 2529710), (10, 2023768), (16, 1264855), (20, 1011884), (40, 505942), (80, 252971)]