4291400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 10230000

約数和(自身を除く): 5938600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 499, 860, 998, 1075, 1720, 1996, 2150, 2495, 3992, 4300, 4990, 8600, 9980, 12475, 19960, 21457, 24950, 42914, 49900, 85828, 99800, 107285, 171656, 214570, 429140, 536425, 858280, 1072850, 2145700, 4291400]

約数ペア:

[(1, 4291400), (2, 2145700), (4, 1072850), (5, 858280), (8, 536425), (10, 429140), (20, 214570), (25, 171656), (40, 107285), (43, 99800), (50, 85828), (86, 49900), (100, 42914), (172, 24950), (200, 21457), (215, 19960), (344, 12475), (430, 9980), (499, 8600), (860, 4990), (998, 4300), (1075, 3992), (1720, 2495), (1996, 2150)]