20300440

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3361}}^1$

素因数の和:3523

約数の個数: 32

約数和(自身を含む): 45992160

約数和(自身を除く): 25691720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3361, 6040, 6722, 13444, 16805, 26888, 33610, 67220, 134440, 507511, 1015022, 2030044, 2537555, 4060088, 5075110, 10150220, 20300440]

約数ペア:

[(1, 20300440), (2, 10150220), (4, 5075110), (5, 4060088), (8, 2537555), (10, 2030044), (20, 1015022), (40, 507511), (151, 134440), (302, 67220), (604, 33610), (755, 26888), (1208, 16805), (1510, 13444), (3020, 6722), (3361, 6040)]