7745980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 17944416

約数和(自身を除く): 10198436

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 257, 274, 514, 548, 685, 1028, 1285, 1370, 1507, 2570, 2740, 2827, 3014, 5140, 5654, 6028, 7535, 11308, 14135, 15070, 28270, 30140, 35209, 56540, 70418, 140836, 176045, 352090, 387299, 704180, 774598, 1549196, 1936495, 3872990, 7745980]

約数ペア:

[(1, 7745980), (2, 3872990), (4, 1936495), (5, 1549196), (10, 774598), (11, 704180), (20, 387299), (22, 352090), (44, 176045), (55, 140836), (110, 70418), (137, 56540), (220, 35209), (257, 30140), (274, 28270), (514, 15070), (548, 14135), (685, 11308), (1028, 7535), (1285, 6028), (1370, 5654), (1507, 5140), (2570, 3014), (2740, 2827)]