31679240

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1733}}^1$

素因数の和:2201

約数の個数: 32

約数和(自身を含む): 71475480

約数和(自身を除く): 39796240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1733, 1828, 2285, 3466, 3656, 4570, 6932, 8665, 9140, 13864, 17330, 18280, 34660, 69320, 791981, 1583962, 3167924, 3959905, 6335848, 7919810, 15839620, 31679240]

約数ペア:

[(1, 31679240), (2, 15839620), (4, 7919810), (5, 6335848), (8, 3959905), (10, 3167924), (20, 1583962), (40, 791981), (457, 69320), (914, 34660), (1733, 18280), (1828, 17330), (2285, 13864), (3466, 9140), (3656, 8665), (4570, 6932)]