28705240

素因数分解:

$2^3\times 5^1\times {\mathrm{717631}}^1$

素因数の和:717642

約数の個数: 16

約数和(自身を含む): 64586880

約数和(自身を除く): 35881640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 717631, 1435262, 2870524, 3588155, 5741048, 7176310, 14352620, 28705240]

約数ペア:

[(1, 28705240), (2, 14352620), (4, 7176310), (5, 5741048), (8, 3588155), (10, 2870524), (20, 1435262), (40, 717631)]