20091704

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{6263}}^1$

素因数の和:6670

約数の個数: 16

約数和(自身を含む): 37771920

約数和(自身を除く): 17680216

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 6263, 12526, 25052, 50104, 2511463, 5022926, 10045852, 20091704]

約数ペア:

[(1, 20091704), (2, 10045852), (4, 5022926), (8, 2511463), (401, 50104), (802, 25052), (1604, 12526), (3208, 6263)]