76428980

素因数分解:

$2^2\times 5^1\times {\mathrm{1931}}^1\times {\mathrm{1979}}^1$

素因数の和:3919

約数の個数: 24

約数和(自身を含む): 160665120

約数和(自身を除く): 84236140

約数列:

[1, 2, 4, 5, 10, 20, 1931, 1979, 3862, 3958, 7724, 7916, 9655, 9895, 19310, 19790, 38620, 39580, 3821449, 7642898, 15285796, 19107245, 38214490, 76428980]

約数ペア:

[(1, 76428980), (2, 38214490), (4, 19107245), (5, 15285796), (10, 7642898), (20, 3821449), (1931, 39580), (1979, 38620), (3862, 19790), (3958, 19310), (7724, 9895), (7916, 9655)]