128680600

素因数分解:

$2^3\times 5^2\times {\mathrm{643403}}^1$

素因数の和:643419

約数の個数: 24

約数和(自身を含む): 299182860

約数和(自身を除く): 170502260

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 643403, 1286806, 2573612, 3217015, 5147224, 6434030, 12868060, 16085075, 25736120, 32170150, 64340300, 128680600]

約数ペア:

[(1, 128680600), (2, 64340300), (4, 32170150), (5, 25736120), (8, 16085075), (10, 12868060), (20, 6434030), (25, 5147224), (40, 3217015), (50, 2573612), (100, 1286806), (200, 643403)]