20687976040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3720859}}^1$

素因数の和:3721009

約数の個数: 32

約数和(自身を含む): 46882836000

約数和(自身を除く): 26194859960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 3720859, 7441718, 14883436, 18604295, 29766872, 37208590, 74417180, 148834360, 517199401, 1034398802, 2068797604, 2585997005, 4137595208, 5171994010, 10343988020, 20687976040]

約数ペア:

[(1, 20687976040), (2, 10343988020), (4, 5171994010), (5, 4137595208), (8, 2585997005), (10, 2068797604), (20, 1034398802), (40, 517199401), (139, 148834360), (278, 74417180), (556, 37208590), (695, 29766872), (1112, 18604295), (1390, 14883436), (2780, 7441718), (5560, 3720859)]