81055850

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{15739}}^1$

素因数の和:15854

約数の個数: 24

約数和(自身を含む): 152237280

約数和(自身を除く): 71181430

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 5150, 15739, 31478, 78695, 157390, 393475, 786950, 1621117, 3242234, 8105585, 16211170, 40527925, 81055850]

約数ペア:

[(1, 81055850), (2, 40527925), (5, 16211170), (10, 8105585), (25, 3242234), (50, 1621117), (103, 786950), (206, 393475), (515, 157390), (1030, 78695), (2575, 31478), (5150, 15739)]