64871920

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1759}}^1$

素因数の和:2233

約数の個数: 40

約数和(自身を含む): 151240320

約数和(自身を除く): 86368400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1759, 1844, 2305, 3518, 3688, 4610, 7036, 7376, 8795, 9220, 14072, 17590, 18440, 28144, 35180, 36880, 70360, 140720, 810899, 1621798, 3243596, 4054495, 6487192, 8108990, 12974384, 16217980, 32435960, 64871920]

約数ペア:

[(1, 64871920), (2, 32435960), (4, 16217980), (5, 12974384), (8, 8108990), (10, 6487192), (16, 4054495), (20, 3243596), (40, 1621798), (80, 810899), (461, 140720), (922, 70360), (1759, 36880), (1844, 35180), (2305, 28144), (3518, 18440), (3688, 17590), (4610, 14072), (7036, 9220), (7376, 8795)]