81250910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{625007}}^1$

素因数の和:625027

約数の個数: 16

約数和(自身を含む): 157502016

約数和(自身を除く): 76251106

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 625007, 1250014, 3125035, 6250070, 8125091, 16250182, 40625455, 81250910]

約数ペア:

[(1, 81250910), (2, 40625455), (5, 16250182), (10, 8125091), (13, 6250070), (26, 3125035), (65, 1250014), (130, 625007)]