91487020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{32909}}^1$

素因数の和:33057

約数の個数: 24

約数和(自身を含む): 193510800

約数和(自身を除く): 102023780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 32909, 65818, 131636, 164545, 329090, 658180, 4574351, 9148702, 18297404, 22871755, 45743510, 91487020]

約数ペア:

[(1, 91487020), (2, 45743510), (4, 22871755), (5, 18297404), (10, 9148702), (20, 4574351), (139, 658180), (278, 329090), (556, 164545), (695, 131636), (1390, 65818), (2780, 32909)]