404964920

素因数分解:

$2^3\times 5^1\times {\mathrm{10124123}}^1$

素因数の和:10124134

約数の個数: 16

約数和(自身を含む): 911171160

約数和(自身を除く): 506206240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10124123, 20248246, 40496492, 50620615, 80992984, 101241230, 202482460, 404964920]

約数ペア:

[(1, 404964920), (2, 202482460), (4, 101241230), (5, 80992984), (8, 50620615), (10, 40496492), (20, 20248246), (40, 10124123)]