205128976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{986197}}^1$

素因数の和:986218

約数の個数: 20

約数和(自身を含む): 428009932

約数和(自身を除く): 222880956

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 986197, 1972394, 3944788, 7889576, 12820561, 15779152, 25641122, 51282244, 102564488, 205128976]

約数ペア:

[(1, 205128976), (2, 102564488), (4, 51282244), (8, 25641122), (13, 15779152), (16, 12820561), (26, 7889576), (52, 3944788), (104, 1972394), (208, 986197)]