28210005640

素因数分解:

$2^3\times 5^1\times {\mathrm{705250141}}^1$

素因数の和:705250152

約数の個数: 16

約数和(自身を含む): 63472512780

約数和(自身を除く): 35262507140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 705250141, 1410500282, 2821000564, 3526250705, 5642001128, 7052501410, 14105002820, 28210005640]

約数ペア:

[(1, 28210005640), (2, 14105002820), (4, 7052501410), (5, 5642001128), (8, 3526250705), (10, 2821000564), (20, 1410500282), (40, 705250141)]