18827270

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 24372730

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 343, 385, 490, 499, 539, 686, 770, 998, 1078, 1715, 2495, 2695, 3430, 3493, 3773, 4990, 5390, 5489, 6986, 7546, 10978, 17465, 18865, 24451, 27445, 34930, 37730, 38423, 48902, 54890, 76846, 122255, 171157, 192115, 244510, 268961, 342314, 384230, 537922, 855785, 1344805, 1711570, 1882727, 2689610, 3765454, 9413635, 18827270]

約数ペア:

[(1, 18827270), (2, 9413635), (5, 3765454), (7, 2689610), (10, 1882727), (11, 1711570), (14, 1344805), (22, 855785), (35, 537922), (49, 384230), (55, 342314), (70, 268961), (77, 244510), (98, 192115), (110, 171157), (154, 122255), (245, 76846), (343, 54890), (385, 48902), (490, 38423), (499, 37730), (539, 34930), (686, 27445), (770, 24451), (998, 18865), (1078, 17465), (1715, 10978), (2495, 7546), (2695, 6986), (3430, 5489), (3493, 5390), (3773, 4990)]