1971291160

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{452131}}^1$

素因数の和:452251

約数の個数: 32

約数和(自身を含む): 4476106800

約数和(自身を除く): 2504815640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 452131, 904262, 1808524, 2260655, 3617048, 4521310, 9042620, 18085240, 49282279, 98564558, 197129116, 246411395, 394258232, 492822790, 985645580, 1971291160]

約数ペア:

[(1, 1971291160), (2, 985645580), (4, 492822790), (5, 394258232), (8, 246411395), (10, 197129116), (20, 98564558), (40, 49282279), (109, 18085240), (218, 9042620), (436, 4521310), (545, 3617048), (872, 2260655), (1090, 1808524), (2180, 904262), (4360, 452131)]