81264170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{625109}}^1$

素因数の和:625129

約数の個数: 16

約数和(自身を含む): 157527720

約数和(自身を除く): 76263550

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 625109, 1250218, 3125545, 6251090, 8126417, 16252834, 40632085, 81264170]

約数ペア:

[(1, 81264170), (2, 40632085), (5, 16252834), (10, 8126417), (13, 6251090), (26, 3125545), (65, 1250218), (130, 625109)]