20996080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37493}}^1$

素因数の和:37513

約数の個数: 40

約数和(自身を含む): 55791072

約数和(自身を除く): 34794992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37493, 74986, 149972, 187465, 262451, 299944, 374930, 524902, 599888, 749860, 1049804, 1312255, 1499720, 2099608, 2624510, 2999440, 4199216, 5249020, 10498040, 20996080]

約数ペア:

[(1, 20996080), (2, 10498040), (4, 5249020), (5, 4199216), (7, 2999440), (8, 2624510), (10, 2099608), (14, 1499720), (16, 1312255), (20, 1049804), (28, 749860), (35, 599888), (40, 524902), (56, 374930), (70, 299944), (80, 262451), (112, 187465), (140, 149972), (280, 74986), (560, 37493)]