208782865

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 274337280

約数和(自身を除く): 65554415

約数列:

[1, 5, 17, 41, 85, 139, 205, 431, 695, 697, 2155, 2363, 3485, 5699, 7327, 11815, 17671, 28495, 36635, 59909, 88355, 96883, 299545, 300407, 484415, 1018453, 1502035, 2456269, 5092265, 12281345, 41756573, 208782865]

約数ペア:

[(1, 208782865), (5, 41756573), (17, 12281345), (41, 5092265), (85, 2456269), (139, 1502035), (205, 1018453), (431, 484415), (695, 300407), (697, 299545), (2155, 96883), (2363, 88355), (3485, 59909), (5699, 36635), (7327, 28495), (11815, 17671)]