19972220

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3797}}^1$

素因数の和:4069

約数の個数: 24

約数和(自身を含む): 42112224

約数和(自身を除く): 22140004

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3797, 5260, 7594, 15188, 18985, 37970, 75940, 998611, 1997222, 3994444, 4993055, 9986110, 19972220]

約数ペア:

[(1, 19972220), (2, 9986110), (4, 4993055), (5, 3994444), (10, 1997222), (20, 998611), (263, 75940), (526, 37970), (1052, 18985), (1315, 15188), (2630, 7594), (3797, 5260)]