278311306

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{2213}}^1$

素因数の和:2926

約数の個数: 32

約数和(自身を含む): 514781568

約数和(自身を除く): 236470262

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 691, 1382, 2213, 4426, 4837, 8983, 9674, 15491, 17966, 28769, 30982, 57538, 62881, 125762, 201383, 402766, 1529183, 3058366, 10704281, 19879379, 21408562, 39758758, 139155653, 278311306]

約数ペア:

[(1, 278311306), (2, 139155653), (7, 39758758), (13, 21408562), (14, 19879379), (26, 10704281), (91, 3058366), (182, 1529183), (691, 402766), (1382, 201383), (2213, 125762), (4426, 62881), (4837, 57538), (8983, 30982), (9674, 28769), (15491, 17966)]