31870000

素因数分解:

$2^4\times 5^4\times {\mathrm{3187}}^1$

素因数の和:3215

約数の個数: 50

約数和(自身を含む): 77184668

約数和(自身を除く): 45314668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3187, 5000, 6374, 10000, 12748, 15935, 25496, 31870, 50992, 63740, 79675, 127480, 159350, 254960, 318700, 398375, 637400, 796750, 1274800, 1593500, 1991875, 3187000, 3983750, 6374000, 7967500, 15935000, 31870000]

約数ペア:

[(1, 31870000), (2, 15935000), (4, 7967500), (5, 6374000), (8, 3983750), (10, 3187000), (16, 1991875), (20, 1593500), (25, 1274800), (40, 796750), (50, 637400), (80, 398375), (100, 318700), (125, 254960), (200, 159350), (250, 127480), (400, 79675), (500, 63740), (625, 50992), (1000, 31870), (1250, 25496), (2000, 15935), (2500, 12748), (3187, 10000), (5000, 6374)]