77516020

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3911}}^1$

素因数の和:4911

約数の個数: 24

約数和(自身を含む): 162989568

約数和(自身を除く): 85473548

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3911, 3964, 4955, 7822, 9910, 15644, 19555, 19820, 39110, 78220, 3875801, 7751602, 15503204, 19379005, 38758010, 77516020]

約数ペア:

[(1, 77516020), (2, 38758010), (4, 19379005), (5, 15503204), (10, 7751602), (20, 3875801), (991, 78220), (1982, 39110), (3911, 19820), (3964, 19555), (4955, 15644), (7822, 9910)]