20772635

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 32

約数和(自身を含む): 28331520

約数和(自身を除く): 7558885

約数列:

[1, 5, 13, 31, 61, 65, 155, 169, 305, 403, 793, 845, 1891, 2015, 2197, 3965, 5239, 9455, 10309, 10985, 24583, 26195, 51545, 68107, 122915, 134017, 319579, 340535, 670085, 1597895, 4154527, 20772635]

約数ペア:

[(1, 20772635), (5, 4154527), (13, 1597895), (31, 670085), (61, 340535), (65, 319579), (155, 134017), (169, 122915), (305, 68107), (403, 51545), (793, 26195), (845, 24583), (1891, 10985), (2015, 10309), (2197, 9455), (3965, 5239)]