1505000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{43}}^1$

素因数の和:76

約数の個数: 80

約数和(自身を含む): 4123680

約数和(自身を除く): 2618680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 43, 50, 56, 70, 86, 100, 125, 140, 172, 175, 200, 215, 250, 280, 301, 344, 350, 430, 500, 602, 625, 700, 860, 875, 1000, 1075, 1204, 1250, 1400, 1505, 1720, 1750, 2150, 2408, 2500, 3010, 3500, 4300, 4375, 5000, 5375, 6020, 7000, 7525, 8600, 8750, 10750, 12040, 15050, 17500, 21500, 26875, 30100, 35000, 37625, 43000, 53750, 60200, 75250, 107500, 150500, 188125, 215000, 301000, 376250, 752500, 1505000]

約数ペア:

[(1, 1505000), (2, 752500), (4, 376250), (5, 301000), (7, 215000), (8, 188125), (10, 150500), (14, 107500), (20, 75250), (25, 60200), (28, 53750), (35, 43000), (40, 37625), (43, 35000), (50, 30100), (56, 26875), (70, 21500), (86, 17500), (100, 15050), (125, 12040), (140, 10750), (172, 8750), (175, 8600), (200, 7525), (215, 7000), (250, 6020), (280, 5375), (301, 5000), (344, 4375), (350, 4300), (430, 3500), (500, 3010), (602, 2500), (625, 2408), (700, 2150), (860, 1750), (875, 1720), (1000, 1505), (1075, 1400), (1204, 1250)]