51825680

素因数分解:

$2^4\times 5^1\times {\mathrm{647821}}^1$

素因数の和:647834

約数の個数: 20

約数和(自身を含む): 120494892

約数和(自身を除く): 68669212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647821, 1295642, 2591284, 3239105, 5182568, 6478210, 10365136, 12956420, 25912840, 51825680]

約数ペア:

[(1, 51825680), (2, 25912840), (4, 12956420), (5, 10365136), (8, 6478210), (10, 5182568), (16, 3239105), (20, 2591284), (40, 1295642), (80, 647821)]