42991400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4999}}^1$

素因数の和:5058

約数の個数: 48

約数和(自身を含む): 102300000

約数和(自身を除く): 59308600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 4300, 4999, 8600, 9998, 19996, 24995, 39992, 49990, 99980, 124975, 199960, 214957, 249950, 429914, 499900, 859828, 999800, 1074785, 1719656, 2149570, 4299140, 5373925, 8598280, 10747850, 21495700, 42991400]

約数ペア:

[(1, 42991400), (2, 21495700), (4, 10747850), (5, 8598280), (8, 5373925), (10, 4299140), (20, 2149570), (25, 1719656), (40, 1074785), (43, 999800), (50, 859828), (86, 499900), (100, 429914), (172, 249950), (200, 214957), (215, 199960), (344, 124975), (430, 99980), (860, 49990), (1075, 39992), (1720, 24995), (2150, 19996), (4300, 9998), (4999, 8600)]