81646916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{3643}}^1$

素因数の和:4091

約数の個数: 24

約数和(自身を含む): 154272384

約数和(自身を除く): 72625468

約数列:

[1, 2, 4, 13, 26, 52, 431, 862, 1724, 3643, 5603, 7286, 11206, 14572, 22412, 47359, 94718, 189436, 1570133, 3140266, 6280532, 20411729, 40823458, 81646916]

約数ペア:

[(1, 81646916), (2, 40823458), (4, 20411729), (13, 6280532), (26, 3140266), (52, 1570133), (431, 189436), (862, 94718), (1724, 47359), (3643, 22412), (5603, 14572), (7286, 11206)]