19605440

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:525

約数の個数: 56

約数和(自身を含む): 47073312

約数和(自身を除く): 27467872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 311, 320, 394, 622, 788, 985, 1244, 1555, 1576, 1970, 2488, 3110, 3152, 3940, 4976, 6220, 6304, 7880, 9952, 12440, 12608, 15760, 19904, 24880, 31520, 49760, 61267, 63040, 99520, 122534, 245068, 306335, 490136, 612670, 980272, 1225340, 1960544, 2450680, 3921088, 4901360, 9802720, 19605440]

約数ペア:

[(1, 19605440), (2, 9802720), (4, 4901360), (5, 3921088), (8, 2450680), (10, 1960544), (16, 1225340), (20, 980272), (32, 612670), (40, 490136), (64, 306335), (80, 245068), (160, 122534), (197, 99520), (311, 63040), (320, 61267), (394, 49760), (622, 31520), (788, 24880), (985, 19904), (1244, 15760), (1555, 12608), (1576, 12440), (1970, 9952), (2488, 7880), (3110, 6304), (3152, 6220), (3940, 4976)]