66401900

素因数分解:

$2^2\times 5^2\times {\mathrm{664019}}^1$

素因数の和:664033

約数の個数: 18

約数和(自身を含む): 144092340

約数和(自身を除く): 77690440

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 664019, 1328038, 2656076, 3320095, 6640190, 13280380, 16600475, 33200950, 66401900]

約数ペア:

[(1, 66401900), (2, 33200950), (4, 16600475), (5, 13280380), (10, 6640190), (20, 3320095), (25, 2656076), (50, 1328038), (100, 664019)]