261376045

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{15923}}^1$

素因数の和:16009

約数の個数: 24

約数和(自身を含む): 370328544

約数和(自身を除く): 108952499

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 2345, 3283, 15923, 16415, 79615, 111461, 557305, 780227, 1066841, 3901135, 5334205, 7467887, 37339435, 52275209, 261376045]

約数ペア:

[(1, 261376045), (5, 52275209), (7, 37339435), (35, 7467887), (49, 5334205), (67, 3901135), (245, 1066841), (335, 780227), (469, 557305), (2345, 111461), (3283, 79615), (15923, 16415)]