85779820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{612713}}^1$

素因数の和:612729

約数の個数: 24

約数和(自身を含む): 205871904

約数和(自身を除く): 120092084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 612713, 1225426, 2450852, 3063565, 4288991, 6127130, 8577982, 12254260, 17155964, 21444955, 42889910, 85779820]

約数ペア:

[(1, 85779820), (2, 42889910), (4, 21444955), (5, 17155964), (7, 12254260), (10, 8577982), (14, 6127130), (20, 4288991), (28, 3063565), (35, 2450852), (70, 1225426), (140, 612713)]