42545240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10531}}^1$

素因数の和:10643

約数の個数: 32

約数和(自身を含む): 96683760

約数和(自身を除く): 54138520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 10531, 21062, 42124, 52655, 84248, 105310, 210620, 421240, 1063631, 2127262, 4254524, 5318155, 8509048, 10636310, 21272620, 42545240]

約数ペア:

[(1, 42545240), (2, 21272620), (4, 10636310), (5, 8509048), (8, 5318155), (10, 4254524), (20, 2127262), (40, 1063631), (101, 421240), (202, 210620), (404, 105310), (505, 84248), (808, 52655), (1010, 42124), (2020, 21062), (4040, 10531)]