77788893020

素因数分解:

$2^2\times 5^1\times {\mathrm{63409}}^1\times {\mathrm{61339}}^1$

素因数の和:124757

約数の個数: 24

約数和(自身を含む): 163361914800

約数和(自身を除く): 85573021780

約数列:

[1, 2, 4, 5, 10, 20, 61339, 63409, 122678, 126818, 245356, 253636, 306695, 317045, 613390, 634090, 1226780, 1268180, 3889444651, 7778889302, 15557778604, 19447223255, 38894446510, 77788893020]

約数ペア:

[(1, 77788893020), (2, 38894446510), (4, 19447223255), (5, 15557778604), (10, 7778889302), (20, 3889444651), (61339, 1268180), (63409, 1226780), (122678, 634090), (126818, 613390), (245356, 317045), (253636, 306695)]