28677940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{14197}}^1$

素因数の和:14307

約数の個数: 24

約数和(自身を含む): 60824232

約数和(自身を除く): 32146292

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 14197, 28394, 56788, 70985, 141970, 283940, 1433897, 2867794, 5735588, 7169485, 14338970, 28677940]

約数ペア:

[(1, 28677940), (2, 14338970), (4, 7169485), (5, 5735588), (10, 2867794), (20, 1433897), (101, 283940), (202, 141970), (404, 70985), (505, 56788), (1010, 28394), (2020, 14197)]