20581360

素因数分解:

$2^4\times 5^1\times {\mathrm{367}}^1\times {\mathrm{701}}^1$

素因数の和:1081

約数の個数: 40

約数和(自身を含む): 48050496

約数和(自身を除く): 27469136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 367, 701, 734, 1402, 1468, 1835, 2804, 2936, 3505, 3670, 5608, 5872, 7010, 7340, 11216, 14020, 14680, 28040, 29360, 56080, 257267, 514534, 1029068, 1286335, 2058136, 2572670, 4116272, 5145340, 10290680, 20581360]

約数ペア:

[(1, 20581360), (2, 10290680), (4, 5145340), (5, 4116272), (8, 2572670), (10, 2058136), (16, 1286335), (20, 1029068), (40, 514534), (80, 257267), (367, 56080), (701, 29360), (734, 28040), (1402, 14680), (1468, 14020), (1835, 11216), (2804, 7340), (2936, 7010), (3505, 5872), (3670, 5608)]