188798980

素因数分解:

$2^2\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{7681}}^1$

素因数の和:8919

約数の個数: 24

約数和(自身を含む): 396852120

約数和(自身を除く): 208053140

約数列:

[1, 2, 4, 5, 10, 20, 1229, 2458, 4916, 6145, 7681, 12290, 15362, 24580, 30724, 38405, 76810, 153620, 9439949, 18879898, 37759796, 47199745, 94399490, 188798980]

約数ペア:

[(1, 188798980), (2, 94399490), (4, 47199745), (5, 37759796), (10, 18879898), (20, 9439949), (1229, 153620), (2458, 76810), (4916, 38405), (6145, 30724), (7681, 24580), (12290, 15362)]