78212505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1997}}^1$

素因数の和:2385

約数の個数: 32

約数和(自身を含む): 143472384

約数和(自身を除く): 65259879

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 373, 1119, 1865, 1997, 2611, 5595, 5991, 7833, 9985, 13055, 13979, 29955, 39165, 41937, 69895, 209685, 744881, 2234643, 3724405, 5214167, 11173215, 15642501, 26070835, 78212505]

約数ペア:

[(1, 78212505), (3, 26070835), (5, 15642501), (7, 11173215), (15, 5214167), (21, 3724405), (35, 2234643), (105, 744881), (373, 209685), (1119, 69895), (1865, 41937), (1997, 39165), (2611, 29955), (5595, 13979), (5991, 13055), (7833, 9985)]