61515640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21067}}^1$

素因数の和:21151

約数の個数: 32

約数和(自身を含む): 140312880

約数和(自身を除く): 78797240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 21067, 42134, 84268, 105335, 168536, 210670, 421340, 842680, 1537891, 3075782, 6151564, 7689455, 12303128, 15378910, 30757820, 61515640]

約数ペア:

[(1, 61515640), (2, 30757820), (4, 15378910), (5, 12303128), (8, 7689455), (10, 6151564), (20, 3075782), (40, 1537891), (73, 842680), (146, 421340), (292, 210670), (365, 168536), (584, 105335), (730, 84268), (1460, 42134), (2920, 21067)]