85721840

素因数分解:

$2^4\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2237}}^1$

素因数の和:2729

約数の個数: 40

約数和(自身を含む): 199808640

約数和(自身を除く): 114086800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 479, 958, 1916, 2237, 2395, 3832, 4474, 4790, 7664, 8948, 9580, 11185, 17896, 19160, 22370, 35792, 38320, 44740, 89480, 178960, 1071523, 2143046, 4286092, 5357615, 8572184, 10715230, 17144368, 21430460, 42860920, 85721840]

約数ペア:

[(1, 85721840), (2, 42860920), (4, 21430460), (5, 17144368), (8, 10715230), (10, 8572184), (16, 5357615), (20, 4286092), (40, 2143046), (80, 1071523), (479, 178960), (958, 89480), (1916, 44740), (2237, 38320), (2395, 35792), (3832, 22370), (4474, 19160), (4790, 17896), (7664, 11185), (8948, 9580)]