80845648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1973}}^1$

素因数の和:2191

約数の個数: 40

約数和(自身を含む): 169629768

約数和(自身を除く): 88784120

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 197, 208, 394, 788, 1576, 1973, 2561, 3152, 3946, 5122, 7892, 10244, 15784, 20488, 25649, 31568, 40976, 51298, 102596, 205192, 388681, 410384, 777362, 1554724, 3109448, 5052853, 6218896, 10105706, 20211412, 40422824, 80845648]

約数ペア:

[(1, 80845648), (2, 40422824), (4, 20211412), (8, 10105706), (13, 6218896), (16, 5052853), (26, 3109448), (52, 1554724), (104, 777362), (197, 410384), (208, 388681), (394, 205192), (788, 102596), (1576, 51298), (1973, 40976), (2561, 31568), (3152, 25649), (3946, 20488), (5122, 15784), (7892, 10244)]