28003870

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21377}}^1$

素因数の和:21515

約数の個数: 16

約数和(自身を含む): 50794128

約数和(自身を除く): 22790258

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 21377, 42754, 106885, 213770, 2800387, 5600774, 14001935, 28003870]

約数ペア:

[(1, 28003870), (2, 14001935), (5, 5600774), (10, 2800387), (131, 213770), (262, 106885), (655, 42754), (1310, 21377)]