12289400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 29257800

約数和(自身を除く): 16968400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1429, 1720, 2150, 2858, 4300, 5716, 7145, 8600, 11432, 14290, 28580, 35725, 57160, 61447, 71450, 122894, 142900, 245788, 285800, 307235, 491576, 614470, 1228940, 1536175, 2457880, 3072350, 6144700, 12289400]

約数ペア:

[(1, 12289400), (2, 6144700), (4, 3072350), (5, 2457880), (8, 1536175), (10, 1228940), (20, 614470), (25, 491576), (40, 307235), (43, 285800), (50, 245788), (86, 142900), (100, 122894), (172, 71450), (200, 61447), (215, 57160), (344, 35725), (430, 28580), (860, 14290), (1075, 11432), (1429, 8600), (1720, 7145), (2150, 5716), (2858, 4300)]