78271739

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 100176384

約数和(自身を除く): 21904645

約数列:

[1, 7, 13, 43, 83, 91, 241, 301, 559, 581, 1079, 1687, 3133, 3569, 3913, 7553, 10363, 20003, 21931, 24983, 46397, 72541, 134719, 140021, 260039, 324779, 860129, 943033, 1820273, 6020903, 11181677, 78271739]

約数ペア:

[(1, 78271739), (7, 11181677), (13, 6020903), (43, 1820273), (83, 943033), (91, 860129), (241, 324779), (301, 260039), (559, 140021), (581, 134719), (1079, 72541), (1687, 46397), (3133, 24983), (3569, 21931), (3913, 20003), (7553, 10363)]