18309400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2129}}^1$

素因数の和:2188

約数の個数: 48

約数和(自身を含む): 43579800

約数和(自身を除く): 25270400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2129, 2150, 4258, 4300, 8516, 8600, 10645, 17032, 21290, 42580, 53225, 85160, 91547, 106450, 183094, 212900, 366188, 425800, 457735, 732376, 915470, 1830940, 2288675, 3661880, 4577350, 9154700, 18309400]

約数ペア:

[(1, 18309400), (2, 9154700), (4, 4577350), (5, 3661880), (8, 2288675), (10, 1830940), (20, 915470), (25, 732376), (40, 457735), (43, 425800), (50, 366188), (86, 212900), (100, 183094), (172, 106450), (200, 91547), (215, 85160), (344, 53225), (430, 42580), (860, 21290), (1075, 17032), (1720, 10645), (2129, 8600), (2150, 8516), (4258, 4300)]