28874285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 40106880

約数和(自身を除く): 11232595

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 319, 421, 473, 1247, 1595, 2105, 2365, 4631, 6235, 12209, 13717, 18103, 23155, 61045, 68585, 90515, 134299, 199133, 524987, 671495, 995665, 2624935, 5774857, 28874285]

約数ペア:

[(1, 28874285), (5, 5774857), (11, 2624935), (29, 995665), (43, 671495), (55, 524987), (145, 199133), (215, 134299), (319, 90515), (421, 68585), (473, 61045), (1247, 23155), (1595, 18103), (2105, 13717), (2365, 12209), (4631, 6235)]