1320447635

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{21139}}^1$

素因数の和:21219

約数の個数: 24

約数和(自身を含む): 1763329680

約数和(自身を除く): 442882045

約数列:

[1, 5, 13, 31, 65, 155, 403, 961, 2015, 4805, 12493, 21139, 62465, 105695, 274807, 655309, 1374035, 3276545, 8519017, 20314579, 42595085, 101572895, 264089527, 1320447635]

約数ペア:

[(1, 1320447635), (5, 264089527), (13, 101572895), (31, 42595085), (65, 20314579), (155, 8519017), (403, 3276545), (961, 1374035), (2015, 655309), (4805, 274807), (12493, 105695), (21139, 62465)]