81644810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{628037}}^1$

素因数の和:628057

約数の個数: 16

約数和(自身を含む): 158265576

約数和(自身を除く): 76620766

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 628037, 1256074, 3140185, 6280370, 8164481, 16328962, 40822405, 81644810]

約数ペア:

[(1, 81644810), (2, 40822405), (5, 16328962), (10, 8164481), (13, 6280370), (26, 3140185), (65, 1256074), (130, 628037)]