20550320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36697}}^1$

素因数の和:36717

約数の個数: 40

約数和(自身を含む): 54606624

約数和(自身を除く): 34056304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36697, 73394, 146788, 183485, 256879, 293576, 366970, 513758, 587152, 733940, 1027516, 1284395, 1467880, 2055032, 2568790, 2935760, 4110064, 5137580, 10275160, 20550320]

約数ペア:

[(1, 20550320), (2, 10275160), (4, 5137580), (5, 4110064), (7, 2935760), (8, 2568790), (10, 2055032), (14, 1467880), (16, 1284395), (20, 1027516), (28, 733940), (35, 587152), (40, 513758), (56, 366970), (70, 293576), (80, 256879), (112, 183485), (140, 146788), (280, 73394), (560, 36697)]