9980642740

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1841447}}^1$

素因数の和:1841727

約数の個数: 24

約数和(自身を含む): 21036701952

約数和(自身を除く): 11056059212

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 1841447, 3682894, 7365788, 9207235, 18414470, 36828940, 499032137, 998064274, 1996128548, 2495160685, 4990321370, 9980642740]

約数ペア:

[(1, 9980642740), (2, 4990321370), (4, 2495160685), (5, 1996128548), (10, 998064274), (20, 499032137), (271, 36828940), (542, 18414470), (1084, 9207235), (1355, 7365788), (2710, 3682894), (5420, 1841447)]