28715640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239297}}^1$

素因数の和:239311

約数の個数: 32

約数和(自身を含む): 86147280

約数和(自身を除く): 57431640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239297, 478594, 717891, 957188, 1196485, 1435782, 1914376, 2392970, 2871564, 3589455, 4785940, 5743128, 7178910, 9571880, 14357820, 28715640]

約数ペア:

[(1, 28715640), (2, 14357820), (3, 9571880), (4, 7178910), (5, 5743128), (6, 4785940), (8, 3589455), (10, 2871564), (12, 2392970), (15, 1914376), (20, 1435782), (24, 1196485), (30, 957188), (40, 717891), (60, 478594), (120, 239297)]