201528495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1303}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 400338432

約数和(自身を除く): 198809937

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 491, 1303, 1473, 2455, 3437, 3909, 4419, 6515, 7365, 9121, 10311, 11727, 17185, 19545, 22095, 27363, 30933, 45605, 51555, 58635, 82089, 136815, 154665, 410445, 639773, 1919319, 3198865, 4478411, 5757957, 9596595, 13435233, 22392055, 28789785, 40305699, 67176165, 201528495]

約数ペア:

[(1, 201528495), (3, 67176165), (5, 40305699), (7, 28789785), (9, 22392055), (15, 13435233), (21, 9596595), (35, 5757957), (45, 4478411), (63, 3198865), (105, 1919319), (315, 639773), (491, 410445), (1303, 154665), (1473, 136815), (2455, 82089), (3437, 58635), (3909, 51555), (4419, 45605), (6515, 30933), (7365, 27363), (9121, 22095), (10311, 19545), (11727, 17185)]