1625020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2621}}^1$

素因数の和:2661

約数の個数: 24

約数和(自身を含む): 3523968

約数和(自身を除く): 1898948

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2621, 5242, 10484, 13105, 26210, 52420, 81251, 162502, 325004, 406255, 812510, 1625020]

約数ペア:

[(1, 1625020), (2, 812510), (4, 406255), (5, 325004), (10, 162502), (20, 81251), (31, 52420), (62, 26210), (124, 13105), (155, 10484), (310, 5242), (620, 2621)]