64231480

素因数分解:

$2^3\times 5^1\times {\mathrm{877}}^1\times {\mathrm{1831}}^1$

素因数の和:2719

約数の個数: 32

約数和(自身を含む): 144764640

約数和(自身を除く): 80533160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 877, 1754, 1831, 3508, 3662, 4385, 7016, 7324, 8770, 9155, 14648, 17540, 18310, 35080, 36620, 73240, 1605787, 3211574, 6423148, 8028935, 12846296, 16057870, 32115740, 64231480]

約数ペア:

[(1, 64231480), (2, 32115740), (4, 16057870), (5, 12846296), (8, 8028935), (10, 6423148), (20, 3211574), (40, 1605787), (877, 73240), (1754, 36620), (1831, 35080), (3508, 18310), (3662, 17540), (4385, 14648), (7016, 9155), (7324, 8770)]