66391760

素因数分解:

$2^4\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1123}}^1$

素因数の和:1875

約数の個数: 40

約数和(自身を含む): 154707360

約数和(自身を除く): 88315600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 739, 1123, 1478, 2246, 2956, 3695, 4492, 5615, 5912, 7390, 8984, 11230, 11824, 14780, 17968, 22460, 29560, 44920, 59120, 89840, 829897, 1659794, 3319588, 4149485, 6639176, 8298970, 13278352, 16597940, 33195880, 66391760]

約数ペア:

[(1, 66391760), (2, 33195880), (4, 16597940), (5, 13278352), (8, 8298970), (10, 6639176), (16, 4149485), (20, 3319588), (40, 1659794), (80, 829897), (739, 89840), (1123, 59120), (1478, 44920), (2246, 29560), (2956, 22460), (3695, 17968), (4492, 14780), (5615, 11824), (5912, 11230), (7390, 8984)]