31080220

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2351}}^1$

素因数の和:3021

約数の個数: 24

約数和(自身を含む): 65395008

約数和(自身を除く): 34314788

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2351, 2644, 3305, 4702, 6610, 9404, 11755, 13220, 23510, 47020, 1554011, 3108022, 6216044, 7770055, 15540110, 31080220]

約数ペア:

[(1, 31080220), (2, 15540110), (4, 7770055), (5, 6216044), (10, 3108022), (20, 1554011), (661, 47020), (1322, 23510), (2351, 13220), (2644, 11755), (3305, 9404), (4702, 6610)]