81221566010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{624781277}}^1$

素因数の和:624781297

約数の個数: 16

約数和(自身を含む): 157444882056

約数和(自身を除く): 76223316046

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 624781277, 1249562554, 3123906385, 6247812770, 8122156601, 16244313202, 40610783005, 81221566010]

約数ペア:

[(1, 81221566010), (2, 40610783005), (5, 16244313202), (10, 8122156601), (13, 6247812770), (26, 3123906385), (65, 1249562554), (130, 624781277)]