51360880

素因数分解:

$2^4\times 5^1\times {\mathrm{642011}}^1$

素因数の和:642024

約数の個数: 20

約数和(自身を含む): 119414232

約数和(自身を除く): 68053352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 642011, 1284022, 2568044, 3210055, 5136088, 6420110, 10272176, 12840220, 25680440, 51360880]

約数ペア:

[(1, 51360880), (2, 25680440), (4, 12840220), (5, 10272176), (8, 6420110), (10, 5136088), (16, 3210055), (20, 2568044), (40, 1284022), (80, 642011)]