51320440

素因数分解:

$2^3\times 5^1\times {\mathrm{1283011}}^1$

素因数の和:1283022

約数の個数: 16

約数和(自身を含む): 115471080

約数和(自身を除く): 64150640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283011, 2566022, 5132044, 6415055, 10264088, 12830110, 25660220, 51320440]

約数ペア:

[(1, 51320440), (2, 25660220), (4, 12830110), (5, 10264088), (8, 6415055), (10, 5132044), (20, 2566022), (40, 1283011)]