129755800

素因数分解:

$2^3\times 5^2\times {\mathrm{648779}}^1$

素因数の和:648795

約数の個数: 24

約数和(自身を含む): 301682700

約数和(自身を除く): 171926900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 648779, 1297558, 2595116, 3243895, 5190232, 6487790, 12975580, 16219475, 25951160, 32438950, 64877900, 129755800]

約数ペア:

[(1, 129755800), (2, 64877900), (4, 32438950), (5, 25951160), (8, 16219475), (10, 12975580), (20, 6487790), (25, 5190232), (40, 3243895), (50, 2595116), (100, 1297558), (200, 648779)]