66828112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321289}}^1$

素因数の和:321310

約数の個数: 20

約数和(自身を含む): 139439860

約数和(自身を除く): 72611748

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321289, 642578, 1285156, 2570312, 4176757, 5140624, 8353514, 16707028, 33414056, 66828112]

約数ペア:

[(1, 66828112), (2, 33414056), (4, 16707028), (8, 8353514), (13, 5140624), (16, 4176757), (26, 2570312), (52, 1285156), (104, 642578), (208, 321289)]