81778168

素因数分解:

$2^3\times {\mathrm{821}}^1\times {\mathrm{12451}}^1$

素因数の和:13278

約数の個数: 16

約数和(自身を含む): 153533160

約数和(自身を除く): 71754992

約数列:

[1, 2, 4, 8, 821, 1642, 3284, 6568, 12451, 24902, 49804, 99608, 10222271, 20444542, 40889084, 81778168]

約数ペア:

[(1, 81778168), (2, 40889084), (4, 20444542), (8, 10222271), (821, 99608), (1642, 49804), (3284, 24902), (6568, 12451)]