138867715

素因数分解:

$5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{6829}}^1$

素因数の和:6931

約数の個数: 24

約数和(自身を含む): 196212240

約数和(自身を除く): 57344525

約数列:

[1, 5, 7, 35, 49, 83, 245, 415, 581, 2905, 4067, 6829, 20335, 34145, 47803, 239015, 334621, 566807, 1673105, 2834035, 3967649, 19838245, 27773543, 138867715]

約数ペア:

[(1, 138867715), (5, 27773543), (7, 19838245), (35, 3967649), (49, 2834035), (83, 1673105), (245, 566807), (415, 334621), (581, 239015), (2905, 47803), (4067, 34145), (6829, 20335)]