639920134

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 1157068800

約数和(自身を除く): 517148666

約数列:

[1, 2, 7, 14, 47, 61, 94, 107, 122, 149, 214, 298, 329, 427, 658, 749, 854, 1043, 1498, 2086, 2867, 5029, 5734, 6527, 7003, 9089, 10058, 13054, 14006, 15943, 18178, 20069, 31886, 35203, 40138, 45689, 49021, 63623, 70406, 91378, 98042, 111601, 127246, 223202, 306769, 427183, 613538, 749321, 854366, 972523, 1498642, 1945046, 2147383, 2990281, 4294766, 5245247, 5980562, 6807661, 10490494, 13615322, 45708581, 91417162, 319960067, 639920134]

約数ペア:

[(1, 639920134), (2, 319960067), (7, 91417162), (14, 45708581), (47, 13615322), (61, 10490494), (94, 6807661), (107, 5980562), (122, 5245247), (149, 4294766), (214, 2990281), (298, 2147383), (329, 1945046), (427, 1498642), (658, 972523), (749, 854366), (854, 749321), (1043, 613538), (1498, 427183), (2086, 306769), (2867, 223202), (5029, 127246), (5734, 111601), (6527, 98042), (7003, 91378), (9089, 70406), (10058, 63623), (13054, 49021), (14006, 45689), (15943, 40138), (18178, 35203), (20069, 31886)]