181392020

素因数分解:

$2^2\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{7477}}^1$

素因数の和:8699

約数の個数: 24

約数和(自身を含む): 381288264

約数和(自身を除く): 199896244

約数列:

[1, 2, 4, 5, 10, 20, 1213, 2426, 4852, 6065, 7477, 12130, 14954, 24260, 29908, 37385, 74770, 149540, 9069601, 18139202, 36278404, 45348005, 90696010, 181392020]

約数ペア:

[(1, 181392020), (2, 90696010), (4, 45348005), (5, 36278404), (10, 18139202), (20, 9069601), (1213, 149540), (2426, 74770), (4852, 37385), (6065, 29908), (7477, 24260), (12130, 14954)]