287991275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{80557}}^1$

素因数の和:80591

約数の個数: 24

約数和(自身を含む): 419546064

約数和(自身を除く): 131554789

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 80557, 402785, 886127, 1047241, 2013925, 4430635, 5236205, 11519651, 22153175, 26181025, 57598255, 287991275]

約数ペア:

[(1, 287991275), (5, 57598255), (11, 26181025), (13, 22153175), (25, 11519651), (55, 5236205), (65, 4430635), (143, 2013925), (275, 1047241), (325, 886127), (715, 402785), (3575, 80557)]