20880020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149143}}^1$

素因数の和:149159

約数の個数: 24

約数和(自身を含む): 50112384

約数和(自身を除く): 29232364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149143, 298286, 596572, 745715, 1044001, 1491430, 2088002, 2982860, 4176004, 5220005, 10440010, 20880020]

約数ペア:

[(1, 20880020), (2, 10440010), (4, 5220005), (5, 4176004), (7, 2982860), (10, 2088002), (14, 1491430), (20, 1044001), (28, 745715), (35, 596572), (70, 298286), (140, 149143)]