205739620

素因数分解:

$2^2\times 5^1\times {\mathrm{2477}}^1\times {\mathrm{4153}}^1$

素因数の和:6639

約数の個数: 24

約数和(自身を含む): 432331704

約数和(自身を除く): 226592084

約数列:

[1, 2, 4, 5, 10, 20, 2477, 4153, 4954, 8306, 9908, 12385, 16612, 20765, 24770, 41530, 49540, 83060, 10286981, 20573962, 41147924, 51434905, 102869810, 205739620]

約数ペア:

[(1, 205739620), (2, 102869810), (4, 51434905), (5, 41147924), (10, 20573962), (20, 10286981), (2477, 83060), (4153, 49540), (4954, 41530), (8306, 24770), (9908, 20765), (12385, 16612)]