1405808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{2143}}^1$

素因数の和:2192

約数の個数: 20

約数和(自身を含む): 2791488

約数和(自身を除く): 1385680

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 2143, 4286, 8572, 17144, 34288, 87863, 175726, 351452, 702904, 1405808]

約数ペア:

[(1, 1405808), (2, 702904), (4, 351452), (8, 175726), (16, 87863), (41, 34288), (82, 17144), (164, 8572), (328, 4286), (656, 2143)]