40144220

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3181}}^1$

素因数の和:3821

約数の個数: 24

約数和(自身を含む): 84463008

約数和(自身を除く): 44318788

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 3181, 6310, 6362, 12620, 12724, 15905, 31810, 63620, 2007211, 4014422, 8028844, 10036055, 20072110, 40144220]

約数ペア:

[(1, 40144220), (2, 20072110), (4, 10036055), (5, 8028844), (10, 4014422), (20, 2007211), (631, 63620), (1262, 31810), (2524, 15905), (3155, 12724), (3181, 12620), (6310, 6362)]