656939854

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 1021144320

約数和(自身を除く): 364204466

約数列:

[1, 2, 71, 83, 139, 142, 166, 278, 401, 802, 5893, 9869, 11537, 11786, 19738, 23074, 28471, 33283, 55739, 56942, 66566, 111478, 819127, 1638254, 2363093, 3957469, 4626337, 4726186, 7914938, 9252674, 328469927, 656939854]

約数ペア:

[(1, 656939854), (2, 328469927), (71, 9252674), (83, 7914938), (139, 4726186), (142, 4626337), (166, 3957469), (278, 2363093), (401, 1638254), (802, 819127), (5893, 111478), (9869, 66566), (11537, 56942), (11786, 55739), (19738, 33283), (23074, 28471)]