18322900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^2\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 54

約数和(自身を含む): 41128010

約数和(自身を除く): 22805110

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 109, 164, 205, 218, 410, 436, 545, 820, 1025, 1090, 1681, 2050, 2180, 2725, 3362, 4100, 4469, 5450, 6724, 8405, 8938, 10900, 16810, 17876, 22345, 33620, 42025, 44690, 84050, 89380, 111725, 168100, 183229, 223450, 366458, 446900, 732916, 916145, 1832290, 3664580, 4580725, 9161450, 18322900]

約数ペア:

[(1, 18322900), (2, 9161450), (4, 4580725), (5, 3664580), (10, 1832290), (20, 916145), (25, 732916), (41, 446900), (50, 366458), (82, 223450), (100, 183229), (109, 168100), (164, 111725), (205, 89380), (218, 84050), (410, 44690), (436, 42025), (545, 33620), (820, 22345), (1025, 17876), (1090, 16810), (1681, 10900), (2050, 8938), (2180, 8405), (2725, 6724), (3362, 5450), (4100, 4469)]