81190928

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55763}}^1$

素因数の和:55791

約数の個数: 40

約数和(自身を含む): 193612608

約数和(自身を除く): 112421680

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 55763, 111526, 223052, 390341, 446104, 724919, 780682, 892208, 1449838, 1561364, 2899676, 3122728, 5074433, 5799352, 6245456, 10148866, 11598704, 20297732, 40595464, 81190928]

約数ペア:

[(1, 81190928), (2, 40595464), (4, 20297732), (7, 11598704), (8, 10148866), (13, 6245456), (14, 5799352), (16, 5074433), (26, 3122728), (28, 2899676), (52, 1561364), (56, 1449838), (91, 892208), (104, 780682), (112, 724919), (182, 446104), (208, 390341), (364, 223052), (728, 111526), (1456, 55763)]