64940226

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 146313216

約数和(自身を除く): 81372990

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 107, 186, 214, 251, 321, 403, 502, 642, 753, 806, 1209, 1391, 1506, 2418, 2782, 3263, 3317, 4173, 6526, 6634, 7781, 8346, 9789, 9951, 15562, 19578, 19902, 23343, 26857, 43121, 46686, 53714, 80571, 86242, 101153, 129363, 161142, 202306, 258726, 303459, 349141, 606918, 698282, 832567, 1047423, 1665134, 2094846, 2497701, 4995402, 10823371, 21646742, 32470113, 64940226]

約数ペア:

[(1, 64940226), (2, 32470113), (3, 21646742), (6, 10823371), (13, 4995402), (26, 2497701), (31, 2094846), (39, 1665134), (62, 1047423), (78, 832567), (93, 698282), (107, 606918), (186, 349141), (214, 303459), (251, 258726), (321, 202306), (403, 161142), (502, 129363), (642, 101153), (753, 86242), (806, 80571), (1209, 53714), (1391, 46686), (1506, 43121), (2418, 26857), (2782, 23343), (3263, 19902), (3317, 19578), (4173, 15562), (6526, 9951), (6634, 9789), (7781, 8346)]