20835280

素因数分解:

$2^4\times 5^1\times {\mathrm{260441}}^1$

素因数の和:260454

約数の個数: 20

約数和(自身を含む): 48442212

約数和(自身を除く): 27606932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260441, 520882, 1041764, 1302205, 2083528, 2604410, 4167056, 5208820, 10417640, 20835280]

約数ペア:

[(1, 20835280), (2, 10417640), (4, 5208820), (5, 4167056), (8, 2604410), (10, 2083528), (16, 1302205), (20, 1041764), (40, 520882), (80, 260441)]