2557670480

素因数分解:

$2^4\times 5^1\times {\mathrm{31970881}}^1$

素因数の和:31970894

約数の個数: 20

約数和(自身を含む): 5946584052

約数和(自身を除く): 3388913572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31970881, 63941762, 127883524, 159854405, 255767048, 319708810, 511534096, 639417620, 1278835240, 2557670480]

約数ペア:

[(1, 2557670480), (2, 1278835240), (4, 639417620), (5, 511534096), (8, 319708810), (10, 255767048), (16, 159854405), (20, 127883524), (40, 63941762), (80, 31970881)]