28865240

素因数分解:

$2^3\times 5^1\times {\mathrm{721631}}^1$

素因数の和:721642

約数の個数: 16

約数和(自身を含む): 64946880

約数和(自身を除く): 36081640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 721631, 1443262, 2886524, 3608155, 5773048, 7216310, 14432620, 28865240]

約数ペア:

[(1, 28865240), (2, 14432620), (4, 7216310), (5, 5773048), (8, 3608155), (10, 2886524), (20, 1443262), (40, 721631)]