2145700

素因数分解:

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

素因数の和:556

約数の個数: 36

約数和(自身を含む): 4774000

約数和(自身を除く): 2628300

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 499, 860, 998, 1075, 1996, 2150, 2495, 4300, 4990, 9980, 12475, 21457, 24950, 42914, 49900, 85828, 107285, 214570, 429140, 536425, 1072850, 2145700]

約数ペア:

[(1, 2145700), (2, 1072850), (4, 536425), (5, 429140), (10, 214570), (20, 107285), (25, 85828), (43, 49900), (50, 42914), (86, 24950), (100, 21457), (172, 12475), (215, 9980), (430, 4990), (499, 4300), (860, 2495), (998, 2150), (1075, 1996)]