81859820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{584713}}^1$

素因数の和:584729

約数の個数: 24

約数和(自身を含む): 196463904

約数和(自身を除く): 114604084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 584713, 1169426, 2338852, 2923565, 4092991, 5847130, 8185982, 11694260, 16371964, 20464955, 40929910, 81859820]

約数ペア:

[(1, 81859820), (2, 40929910), (4, 20464955), (5, 16371964), (7, 11694260), (10, 8185982), (14, 5847130), (20, 4092991), (28, 2923565), (35, 2338852), (70, 1169426), (140, 584713)]