12888440

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{769}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 29106000

約数和(自身を除く): 16217560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 769, 838, 1538, 1676, 2095, 3076, 3352, 3845, 4190, 6152, 7690, 8380, 15380, 16760, 30760, 322211, 644422, 1288844, 1611055, 2577688, 3222110, 6444220, 12888440]

約数ペア:

[(1, 12888440), (2, 6444220), (4, 3222110), (5, 2577688), (8, 1611055), (10, 1288844), (20, 644422), (40, 322211), (419, 30760), (769, 16760), (838, 15380), (1538, 8380), (1676, 7690), (2095, 6152), (3076, 4190), (3352, 3845)]