139901615

素因数分解:

$5^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{1289}}^1$

素因数の和:1751

約数の個数: 24

約数和(自身を含む): 195883920

約数和(自身を除く): 55982305

約数列:

[1, 5, 7, 35, 49, 245, 443, 1289, 2215, 3101, 6445, 9023, 15505, 21707, 45115, 63161, 108535, 315805, 571027, 2855135, 3997189, 19985945, 27980323, 139901615]

約数ペア:

[(1, 139901615), (5, 27980323), (7, 19985945), (35, 3997189), (49, 2855135), (245, 571027), (443, 315805), (1289, 108535), (2215, 63161), (3101, 45115), (6445, 21707), (9023, 15505)]