20187457904

素因数分解:

$2^4\times {\mathrm{21871}}^1\times {\mathrm{57689}}^1$

素因数の和:79568

約数の個数: 20

約数和(自身を含む): 39115666080

約数和(自身を除く): 18928208176

約数列:

[1, 2, 4, 8, 16, 21871, 43742, 57689, 87484, 115378, 174968, 230756, 349936, 461512, 923024, 1261716119, 2523432238, 5046864476, 10093728952, 20187457904]

約数ペア:

[(1, 20187457904), (2, 10093728952), (4, 5046864476), (8, 2523432238), (16, 1261716119), (21871, 923024), (43742, 461512), (57689, 349936), (87484, 230756), (115378, 174968)]