221998180

素因数分解:

$2^2\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{9479}}^1$

素因数の和:10659

約数の個数: 24

約数和(自身を含む): 466643520

約数和(自身を除く): 244645340

約数列:

[1, 2, 4, 5, 10, 20, 1171, 2342, 4684, 5855, 9479, 11710, 18958, 23420, 37916, 47395, 94790, 189580, 11099909, 22199818, 44399636, 55499545, 110999090, 221998180]

約数ペア:

[(1, 221998180), (2, 110999090), (4, 55499545), (5, 44399636), (10, 22199818), (20, 11099909), (1171, 189580), (2342, 94790), (4684, 47395), (5855, 37916), (9479, 23420), (11710, 18958)]