220815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{701}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 438048

約数和(自身を除く): 217233

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 701, 2103, 3505, 4907, 6309, 10515, 14721, 24535, 31545, 44163, 73605, 220815]

約数ペア:

[(1, 220815), (3, 73605), (5, 44163), (7, 31545), (9, 24535), (15, 14721), (21, 10515), (35, 6309), (45, 4907), (63, 3505), (105, 2103), (315, 701)]