128813525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2341}}^1$

素因数の和:2453

約数の個数: 24

約数和(自身を含む): 167275008

約数和(自身を除く): 38461483

約数列:

[1, 5, 25, 31, 71, 155, 355, 775, 1775, 2201, 2341, 11005, 11705, 55025, 58525, 72571, 166211, 362855, 831055, 1814275, 4155275, 5152541, 25762705, 128813525]

約数ペア:

[(1, 128813525), (5, 25762705), (25, 5152541), (31, 4155275), (71, 1814275), (155, 831055), (355, 362855), (775, 166211), (1775, 72571), (2201, 58525), (2341, 55025), (11005, 11705)]