68515280

素因数分解:

$2^4\times 5^1\times {\mathrm{856441}}^1$

素因数の和:856454

約数の個数: 20

約数和(自身を含む): 159298212

約数和(自身を除く): 90782932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 856441, 1712882, 3425764, 4282205, 6851528, 8564410, 13703056, 17128820, 34257640, 68515280]

約数ペア:

[(1, 68515280), (2, 34257640), (4, 17128820), (5, 13703056), (8, 8564410), (10, 6851528), (16, 4282205), (20, 3425764), (40, 1712882), (80, 856441)]