20157165

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 20278035

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 89, 105, 267, 315, 445, 623, 719, 801, 1335, 1869, 2157, 3115, 3595, 4005, 5033, 5607, 6471, 9345, 10785, 15099, 25165, 28035, 32355, 45297, 63991, 75495, 191973, 226485, 319955, 447937, 575919, 959865, 1343811, 2239685, 2879595, 4031433, 6719055, 20157165]

約数ペア:

[(1, 20157165), (3, 6719055), (5, 4031433), (7, 2879595), (9, 2239685), (15, 1343811), (21, 959865), (35, 575919), (45, 447937), (63, 319955), (89, 226485), (105, 191973), (267, 75495), (315, 63991), (445, 45297), (623, 32355), (719, 28035), (801, 25165), (1335, 15099), (1869, 10785), (2157, 9345), (3115, 6471), (3595, 5607), (4005, 5033)]