77952020

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{7481}}^1$

素因数の和:8011

約数の個数: 24

約数和(自身を含む): 164035368

約数和(自身を除く): 86083348

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 7481, 10420, 14962, 29924, 37405, 74810, 149620, 3897601, 7795202, 15590404, 19488005, 38976010, 77952020]

約数ペア:

[(1, 77952020), (2, 38976010), (4, 19488005), (5, 15590404), (10, 7795202), (20, 3897601), (521, 149620), (1042, 74810), (2084, 37405), (2605, 29924), (5210, 14962), (7481, 10420)]