123025640

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{4451}}^1$

素因数の和:5153

約数の個数: 32

約数和(自身を含む): 277270560

約数和(自身を除く): 154244920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 4451, 5528, 6910, 8902, 13820, 17804, 22255, 27640, 35608, 44510, 89020, 178040, 3075641, 6151282, 12302564, 15378205, 24605128, 30756410, 61512820, 123025640]

約数ペア:

[(1, 123025640), (2, 61512820), (4, 30756410), (5, 24605128), (8, 15378205), (10, 12302564), (20, 6151282), (40, 3075641), (691, 178040), (1382, 89020), (2764, 44510), (3455, 35608), (4451, 27640), (5528, 22255), (6910, 17804), (8902, 13820)]