20066680

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4967}}^1$

素因数の和:5079

約数の個数: 32

約数和(自身を含む): 45606240

約数和(自身を除く): 25539560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4967, 9934, 19868, 24835, 39736, 49670, 99340, 198680, 501667, 1003334, 2006668, 2508335, 4013336, 5016670, 10033340, 20066680]

約数ペア:

[(1, 20066680), (2, 10033340), (4, 5016670), (5, 4013336), (8, 2508335), (10, 2006668), (20, 1003334), (40, 501667), (101, 198680), (202, 99340), (404, 49670), (505, 39736), (808, 24835), (1010, 19868), (2020, 9934), (4040, 4967)]