20670895

素因数分解:

$5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{709}}^1$

素因数の和:752

約数の個数: 32

約数和(自身を含む): 30672000

約数和(自身を除く): 10001105

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 343, 595, 709, 833, 1715, 3545, 4165, 4963, 5831, 12053, 24815, 29155, 34741, 60265, 84371, 173705, 243187, 421855, 590597, 1215935, 2952985, 4134179, 20670895]

約数ペア:

[(1, 20670895), (5, 4134179), (7, 2952985), (17, 1215935), (35, 590597), (49, 421855), (85, 243187), (119, 173705), (245, 84371), (343, 60265), (595, 34741), (709, 29155), (833, 24815), (1715, 12053), (3545, 5831), (4165, 4963)]