81228095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{8387}}^1$

素因数の和:8554

約数の個数: 16

約数和(自身を含む): 105688800

約数和(自身を除く): 24460705

約数列:

[1, 5, 13, 65, 149, 745, 1937, 8387, 9685, 41935, 109031, 545155, 1249663, 6248315, 16245619, 81228095]

約数ペア:

[(1, 81228095), (5, 16245619), (13, 6248315), (65, 1249663), (149, 545155), (745, 109031), (1937, 41935), (8387, 9685)]