87817640

素因数分解:

$2^3\times 5^1\times {\mathrm{2195441}}^1$

素因数の和:2195452

約数の個数: 16

約数和(自身を含む): 197589780

約数和(自身を除く): 109772140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2195441, 4390882, 8781764, 10977205, 17563528, 21954410, 43908820, 87817640]

約数ペア:

[(1, 87817640), (2, 43908820), (4, 21954410), (5, 17563528), (8, 10977205), (10, 8781764), (20, 4390882), (40, 2195441)]