99721040

素因数分解:

$2^4\times 5^1\times {\mathrm{1246513}}^1$

素因数の和:1246526

約数の個数: 20

約数和(自身を含む): 231851604

約数和(自身を除く): 132130564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1246513, 2493026, 4986052, 6232565, 9972104, 12465130, 19944208, 24930260, 49860520, 99721040]

約数ペア:

[(1, 99721040), (2, 49860520), (4, 24930260), (5, 19944208), (8, 12465130), (10, 9972104), (16, 6232565), (20, 4986052), (40, 2493026), (80, 1246513)]