5278480

素因数分解:

$2^4\times 5^1\times {\mathrm{65981}}^1$

素因数の和:65994

約数の個数: 20

約数和(自身を含む): 12272652

約数和(自身を除く): 6994172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 65981, 131962, 263924, 329905, 527848, 659810, 1055696, 1319620, 2639240, 5278480]

約数ペア:

[(1, 5278480), (2, 2639240), (4, 1319620), (5, 1055696), (8, 659810), (10, 527848), (16, 329905), (20, 263924), (40, 131962), (80, 65981)]