218781310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{180811}}^1$

素因数の和:180840

約数の個数: 24

約数和(自身を含む): 432863928

約数和(自身を除く): 214082618

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 180811, 361622, 904055, 1808110, 1988921, 3977842, 9944605, 19889210, 21878131, 43756262, 109390655, 218781310]

約数ペア:

[(1, 218781310), (2, 109390655), (5, 43756262), (10, 21878131), (11, 19889210), (22, 9944605), (55, 3977842), (110, 1988921), (121, 1808110), (242, 904055), (605, 361622), (1210, 180811)]