663937458

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{881}}^1$

素因数の和:1079

約数の個数: 64

約数和(自身を含む): 1430618112

約数和(自身を除く): 766680654

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 127, 129, 138, 254, 258, 381, 762, 881, 989, 1762, 1978, 2643, 2921, 2967, 5286, 5461, 5842, 5934, 8763, 10922, 16383, 17526, 20263, 32766, 37883, 40526, 60789, 75766, 111887, 113649, 121578, 125603, 223774, 227298, 251206, 335661, 376809, 671322, 753618, 871309, 1742618, 2573401, 2613927, 4811141, 5146802, 5227854, 7720203, 9622282, 14433423, 15440406, 28866846, 110656243, 221312486, 331968729, 663937458]

約数ペア:

[(1, 663937458), (2, 331968729), (3, 221312486), (6, 110656243), (23, 28866846), (43, 15440406), (46, 14433423), (69, 9622282), (86, 7720203), (127, 5227854), (129, 5146802), (138, 4811141), (254, 2613927), (258, 2573401), (381, 1742618), (762, 871309), (881, 753618), (989, 671322), (1762, 376809), (1978, 335661), (2643, 251206), (2921, 227298), (2967, 223774), (5286, 125603), (5461, 121578), (5842, 113649), (5934, 111887), (8763, 75766), (10922, 60789), (16383, 40526), (17526, 37883), (20263, 32766)]