8722480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8387}}^1$

素因数の和:8413

約数の個数: 40

約数和(自身を含む): 21842352

約数和(自身を除く): 13119872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8387, 16774, 33548, 41935, 67096, 83870, 109031, 134192, 167740, 218062, 335480, 436124, 545155, 670960, 872248, 1090310, 1744496, 2180620, 4361240, 8722480]

約数ペア:

[(1, 8722480), (2, 4361240), (4, 2180620), (5, 1744496), (8, 1090310), (10, 872248), (13, 670960), (16, 545155), (20, 436124), (26, 335480), (40, 218062), (52, 167740), (65, 134192), (80, 109031), (104, 83870), (130, 67096), (208, 41935), (260, 33548), (520, 16774), (1040, 8387)]