20631620

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1163}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 43412544

約数和(自身を除く): 22780924

約数列:

[1, 2, 4, 5, 10, 20, 887, 1163, 1774, 2326, 3548, 4435, 4652, 5815, 8870, 11630, 17740, 23260, 1031581, 2063162, 4126324, 5157905, 10315810, 20631620]

約数ペア:

[(1, 20631620), (2, 10315810), (4, 5157905), (5, 4126324), (10, 2063162), (20, 1031581), (887, 23260), (1163, 17740), (1774, 11630), (2326, 8870), (3548, 5815), (4435, 4652)]