28709855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{613}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 39787200

約数和(自身を除く): 11077345

約数列:

[1, 5, 17, 19, 29, 85, 95, 145, 323, 493, 551, 613, 1615, 2465, 2755, 3065, 9367, 10421, 11647, 17777, 46835, 52105, 58235, 88885, 197999, 302209, 337763, 989995, 1511045, 1688815, 5741971, 28709855]

約数ペア:

[(1, 28709855), (5, 5741971), (17, 1688815), (19, 1511045), (29, 989995), (85, 337763), (95, 302209), (145, 197999), (323, 88885), (493, 58235), (551, 52105), (613, 46835), (1615, 17777), (2465, 11647), (2755, 10421), (3065, 9367)]