20652940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13411}}^1$

素因数の和:13438

約数の個数: 48

約数和(自身を含む): 54077184

約数和(自身を除く): 33424244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13411, 26822, 53644, 67055, 93877, 134110, 147521, 187754, 268220, 295042, 375508, 469385, 590084, 737605, 938770, 1032647, 1475210, 1877540, 2065294, 2950420, 4130588, 5163235, 10326470, 20652940]

約数ペア:

[(1, 20652940), (2, 10326470), (4, 5163235), (5, 4130588), (7, 2950420), (10, 2065294), (11, 1877540), (14, 1475210), (20, 1032647), (22, 938770), (28, 737605), (35, 590084), (44, 469385), (55, 375508), (70, 295042), (77, 268220), (110, 187754), (140, 147521), (154, 134110), (220, 93877), (308, 67055), (385, 53644), (770, 26822), (1540, 13411)]