203156920

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{10429}}^1$

素因数の和:10927

約数の個数: 32

約数和(自身を含む): 458085600

約数和(自身を除く): 254928680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 9740, 10429, 19480, 20858, 41716, 52145, 83432, 104290, 208580, 417160, 5078923, 10157846, 20315692, 25394615, 40631384, 50789230, 101578460, 203156920]

約数ペア:

[(1, 203156920), (2, 101578460), (4, 50789230), (5, 40631384), (8, 25394615), (10, 20315692), (20, 10157846), (40, 5078923), (487, 417160), (974, 208580), (1948, 104290), (2435, 83432), (3896, 52145), (4870, 41716), (9740, 20858), (10429, 19480)]