19904320

素因数分解:

$2^6\times 5^1\times {\mathrm{62201}}^1$

素因数の和:62218

約数の個数: 28

約数和(自身を含む): 47397924

約数和(自身を除く): 27493604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62201, 124402, 248804, 311005, 497608, 622010, 995216, 1244020, 1990432, 2488040, 3980864, 4976080, 9952160, 19904320]

約数ペア:

[(1, 19904320), (2, 9952160), (4, 4976080), (5, 3980864), (8, 2488040), (10, 1990432), (16, 1244020), (20, 995216), (32, 622010), (40, 497608), (64, 311005), (80, 248804), (160, 124402), (320, 62201)]