20643630

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:713

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 36380370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 197, 210, 394, 499, 591, 985, 998, 1182, 1379, 1497, 1970, 2495, 2758, 2955, 2994, 3493, 4137, 4990, 5910, 6895, 6986, 7485, 8274, 10479, 13790, 14970, 17465, 20685, 20958, 34930, 41370, 52395, 98303, 104790, 196606, 294909, 491515, 589818, 688121, 983030, 1376242, 1474545, 2064363, 2949090, 3440605, 4128726, 6881210, 10321815, 20643630]

約数ペア:

[(1, 20643630), (2, 10321815), (3, 6881210), (5, 4128726), (6, 3440605), (7, 2949090), (10, 2064363), (14, 1474545), (15, 1376242), (21, 983030), (30, 688121), (35, 589818), (42, 491515), (70, 294909), (105, 196606), (197, 104790), (210, 98303), (394, 52395), (499, 41370), (591, 34930), (985, 20958), (998, 20685), (1182, 17465), (1379, 14970), (1497, 13790), (1970, 10479), (2495, 8274), (2758, 7485), (2955, 6986), (2994, 6895), (3493, 5910), (4137, 4990)]