18993670085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{304069}}^1$

素因数の和:304149

約数の個数: 24

約数和(自身を含む): 25363086840

約数和(自身を除く): 6369416755

約数列:

[1, 5, 13, 31, 65, 155, 403, 961, 2015, 4805, 12493, 62465, 304069, 1520345, 3952897, 9426139, 19764485, 47130695, 122539807, 292210309, 612699035, 1461051545, 3798734017, 18993670085]

約数ペア:

[(1, 18993670085), (5, 3798734017), (13, 1461051545), (31, 612699035), (65, 292210309), (155, 122539807), (403, 47130695), (961, 19764485), (2015, 9426139), (4805, 3952897), (12493, 1520345), (62465, 304069)]