211328440

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{5441}}^1$

素因数の和:6423

約数の個数: 32

約数和(自身を含む): 476066160

約数和(自身を除く): 264737720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 3884, 4855, 5441, 7768, 9710, 10882, 19420, 21764, 27205, 38840, 43528, 54410, 108820, 217640, 5283211, 10566422, 21132844, 26416055, 42265688, 52832110, 105664220, 211328440]

約数ペア:

[(1, 211328440), (2, 105664220), (4, 52832110), (5, 42265688), (8, 26416055), (10, 21132844), (20, 10566422), (40, 5283211), (971, 217640), (1942, 108820), (3884, 54410), (4855, 43528), (5441, 38840), (7768, 27205), (9710, 21764), (10882, 19420)]