20596280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2309}}^1$

素因数の和:2543

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25973320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 2309, 4460, 4618, 8920, 9236, 11545, 18472, 23090, 46180, 92360, 514907, 1029814, 2059628, 2574535, 4119256, 5149070, 10298140, 20596280]

約数ペア:

[(1, 20596280), (2, 10298140), (4, 5149070), (5, 4119256), (8, 2574535), (10, 2059628), (20, 1029814), (40, 514907), (223, 92360), (446, 46180), (892, 23090), (1115, 18472), (1784, 11545), (2230, 9236), (2309, 8920), (4460, 4618)]