90876760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{174763}}^1$

素因数の和:174787

約数の個数: 32

約数和(自身を含む): 220202640

約数和(自身を除く): 129325880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 174763, 349526, 699052, 873815, 1398104, 1747630, 2271919, 3495260, 4543838, 6990520, 9087676, 11359595, 18175352, 22719190, 45438380, 90876760]

約数ペア:

[(1, 90876760), (2, 45438380), (4, 22719190), (5, 18175352), (8, 11359595), (10, 9087676), (13, 6990520), (20, 4543838), (26, 3495260), (40, 2271919), (52, 1747630), (65, 1398104), (104, 873815), (130, 699052), (260, 349526), (520, 174763)]