81302540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{369557}}^1$

素因数の和:369577

約数の個数: 24

約数和(自身を含む): 186257232

約数和(自身を除く): 104954692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 369557, 739114, 1478228, 1847785, 3695570, 4065127, 7391140, 8130254, 16260508, 20325635, 40651270, 81302540]

約数ペア:

[(1, 81302540), (2, 40651270), (4, 20325635), (5, 16260508), (10, 8130254), (11, 7391140), (20, 4065127), (22, 3695570), (44, 1847785), (55, 1478228), (110, 739114), (220, 369557)]