430000

素因数分解:

$2^4\times 5^4\times {\mathrm{43}}^1$

素因数の和:71

約数の個数: 50

約数和(自身を含む): 1065284

約数和(自身を除く): 635284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 125, 172, 200, 215, 250, 344, 400, 430, 500, 625, 688, 860, 1000, 1075, 1250, 1720, 2000, 2150, 2500, 3440, 4300, 5000, 5375, 8600, 10000, 10750, 17200, 21500, 26875, 43000, 53750, 86000, 107500, 215000, 430000]

約数ペア:

[(1, 430000), (2, 215000), (4, 107500), (5, 86000), (8, 53750), (10, 43000), (16, 26875), (20, 21500), (25, 17200), (40, 10750), (43, 10000), (50, 8600), (80, 5375), (86, 5000), (100, 4300), (125, 3440), (172, 2500), (200, 2150), (215, 2000), (250, 1720), (344, 1250), (400, 1075), (430, 1000), (500, 860), (625, 688)]