28035580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13879}}^1$

素因数の和:13989

約数の個数: 24

約数和(自身を含む): 59461920

約数和(自身を除く): 31426340

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 13879, 27758, 55516, 69395, 138790, 277580, 1401779, 2803558, 5607116, 7008895, 14017790, 28035580]

約数ペア:

[(1, 28035580), (2, 14017790), (4, 7008895), (5, 5607116), (10, 2803558), (20, 1401779), (101, 277580), (202, 138790), (404, 69395), (505, 55516), (1010, 27758), (2020, 13879)]