81268205

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{6317}}^1$

素因数の和:6436

約数の個数: 16

約数和(自身を含む): 101896704

約数和(自身を除く): 20628499

約数列:

[1, 5, 31, 83, 155, 415, 2573, 6317, 12865, 31585, 195827, 524311, 979135, 2621555, 16253641, 81268205]

約数ペア:

[(1, 81268205), (5, 16253641), (31, 2621555), (83, 979135), (155, 524311), (415, 195827), (2573, 31585), (6317, 12865)]