12784520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{45659}}^1$

素因数の和:45677

約数の個数: 32

約数和(自身を含む): 32875200

約数和(自身を除く): 20090680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 45659, 91318, 182636, 228295, 319613, 365272, 456590, 639226, 913180, 1278452, 1598065, 1826360, 2556904, 3196130, 6392260, 12784520]

約数ペア:

[(1, 12784520), (2, 6392260), (4, 3196130), (5, 2556904), (7, 1826360), (8, 1598065), (10, 1278452), (14, 913180), (20, 639226), (28, 456590), (35, 365272), (40, 319613), (56, 228295), (70, 182636), (140, 91318), (280, 45659)]