201619280

素因数分解:

$2^4\times 5^1\times {\mathrm{2520241}}^1$

素因数の和:2520254

約数の個数: 20

約数和(自身を含む): 468765012

約数和(自身を除く): 267145732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2520241, 5040482, 10080964, 12601205, 20161928, 25202410, 40323856, 50404820, 100809640, 201619280]

約数ペア:

[(1, 201619280), (2, 100809640), (4, 50404820), (5, 40323856), (8, 25202410), (10, 20161928), (16, 12601205), (20, 10080964), (40, 5040482), (80, 2520241)]