811120

素因数分解:

$2^4\times 5^1\times {\mathrm{10139}}^1$

素因数の和:10152

約数の個数: 20

約数和(自身を含む): 1886040

約数和(自身を除く): 1074920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10139, 20278, 40556, 50695, 81112, 101390, 162224, 202780, 405560, 811120]

約数ペア:

[(1, 811120), (2, 405560), (4, 202780), (5, 162224), (8, 101390), (10, 81112), (16, 50695), (20, 40556), (40, 20278), (80, 10139)]