18538220

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1163}}^1$

素因数の和:1969

約数の個数: 24

約数和(自身を含む): 39012624

約数和(自身を除く): 20474404

約数列:

[1, 2, 4, 5, 10, 20, 797, 1163, 1594, 2326, 3188, 3985, 4652, 5815, 7970, 11630, 15940, 23260, 926911, 1853822, 3707644, 4634555, 9269110, 18538220]

約数ペア:

[(1, 18538220), (2, 9269110), (4, 4634555), (5, 3707644), (10, 1853822), (20, 926911), (797, 23260), (1163, 15940), (1594, 11630), (2326, 7970), (3188, 5815), (3985, 4652)]