90203140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{691}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 194612544

約数和(自身を除く): 104409404

約数列:

[1, 2, 4, 5, 10, 20, 61, 107, 122, 214, 244, 305, 428, 535, 610, 691, 1070, 1220, 1382, 2140, 2764, 3455, 6527, 6910, 13054, 13820, 26108, 32635, 42151, 65270, 73937, 84302, 130540, 147874, 168604, 210755, 295748, 369685, 421510, 739370, 843020, 1478740, 4510157, 9020314, 18040628, 22550785, 45101570, 90203140]

約数ペア:

[(1, 90203140), (2, 45101570), (4, 22550785), (5, 18040628), (10, 9020314), (20, 4510157), (61, 1478740), (107, 843020), (122, 739370), (214, 421510), (244, 369685), (305, 295748), (428, 210755), (535, 168604), (610, 147874), (691, 130540), (1070, 84302), (1220, 73937), (1382, 65270), (2140, 42151), (2764, 32635), (3455, 26108), (6527, 13820), (6910, 13054)]