19838980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141707}}^1$

素因数の和:141723

約数の個数: 24

約数和(自身を含む): 47613888

約数和(自身を除く): 27774908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141707, 283414, 566828, 708535, 991949, 1417070, 1983898, 2834140, 3967796, 4959745, 9919490, 19838980]

約数ペア:

[(1, 19838980), (2, 9919490), (4, 4959745), (5, 3967796), (7, 2834140), (10, 1983898), (14, 1417070), (20, 991949), (28, 708535), (35, 566828), (70, 283414), (140, 141707)]