78937640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12107}}^1$

素因数の和:12281

約数の個数: 32

約数和(自身を含む): 178714080

約数和(自身を除く): 99776440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12107, 24214, 48428, 60535, 96856, 121070, 242140, 484280, 1973441, 3946882, 7893764, 9867205, 15787528, 19734410, 39468820, 78937640]

約数ペア:

[(1, 78937640), (2, 39468820), (4, 19734410), (5, 15787528), (8, 9867205), (10, 7893764), (20, 3946882), (40, 1973441), (163, 484280), (326, 242140), (652, 121070), (815, 96856), (1304, 60535), (1630, 48428), (3260, 24214), (6520, 12107)]