25205505

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 44657856

約数和(自身を除く): 19452351

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 163, 169, 183, 195, 305, 489, 507, 793, 815, 845, 915, 2119, 2379, 2445, 2535, 3965, 6357, 9943, 10309, 10595, 11895, 27547, 29829, 30927, 31785, 49715, 51545, 82641, 129259, 137735, 149145, 154635, 387777, 413205, 646295, 1680367, 1938885, 5041101, 8401835, 25205505]

約数ペア:

[(1, 25205505), (3, 8401835), (5, 5041101), (13, 1938885), (15, 1680367), (39, 646295), (61, 413205), (65, 387777), (163, 154635), (169, 149145), (183, 137735), (195, 129259), (305, 82641), (489, 51545), (507, 49715), (793, 31785), (815, 30927), (845, 29829), (915, 27547), (2119, 11895), (2379, 10595), (2445, 10309), (2535, 9943), (3965, 6357)]