165645136

素因数分解:

$2^4\times {\mathrm{1999}}^1\times {\mathrm{5179}}^1$

素因数の和:7186

約数の個数: 20

約数和(自身を含む): 321160000

約数和(自身を除く): 155514864

約数列:

[1, 2, 4, 8, 16, 1999, 3998, 5179, 7996, 10358, 15992, 20716, 31984, 41432, 82864, 10352821, 20705642, 41411284, 82822568, 165645136]

約数ペア:

[(1, 165645136), (2, 82822568), (4, 41411284), (8, 20705642), (16, 10352821), (1999, 82864), (3998, 41432), (5179, 31984), (7996, 20716), (10358, 15992)]