20877020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61403}}^1$

素因数の和:61429

約数の個数: 24

約数和(自身を含む): 46421424

約数和(自身を除く): 25544404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61403, 122806, 245612, 307015, 614030, 1043851, 1228060, 2087702, 4175404, 5219255, 10438510, 20877020]

約数ペア:

[(1, 20877020), (2, 10438510), (4, 5219255), (5, 4175404), (10, 2087702), (17, 1228060), (20, 1043851), (34, 614030), (68, 307015), (85, 245612), (170, 122806), (340, 61403)]