28701290

素因数分解:

$2^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{3539}}^1$

素因数の和:4357

約数の個数: 16

約数和(自身を含む): 51740640

約数和(自身を除く): 23039350

約数列:

[1, 2, 5, 10, 811, 1622, 3539, 4055, 7078, 8110, 17695, 35390, 2870129, 5740258, 14350645, 28701290]

約数ペア:

[(1, 28701290), (2, 14350645), (5, 5740258), (10, 2870129), (811, 35390), (1622, 17695), (3539, 8110), (4055, 7078)]