661612445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1\times {\mathrm{6287}}^1$

素因数の和:7924

約数の個数: 16

約数和(自身を含む): 855671040

約数和(自身を除く): 194058595

約数列:

[1, 5, 13, 65, 1619, 6287, 8095, 21047, 31435, 81731, 105235, 408655, 10178653, 50893265, 132322489, 661612445]

約数ペア:

[(1, 661612445), (5, 132322489), (13, 50893265), (65, 10178653), (1619, 408655), (6287, 105235), (8095, 81731), (21047, 31435)]