81264430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{625111}}^1$

素因数の和:625131

約数の個数: 16

約数和(自身を含む): 157528224

約数和(自身を除く): 76263794

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 625111, 1250222, 3125555, 6251110, 8126443, 16252886, 40632215, 81264430]

約数ペア:

[(1, 81264430), (2, 40632215), (5, 16252886), (10, 8126443), (13, 6251110), (26, 3125555), (65, 1250222), (130, 625111)]