28298205

素因数分解:

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

素因数の和:159

約数の個数: 54

約数和(自身を含む): 53998542

約数和(自身を除く): 25700337

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 61, 65, 117, 169, 183, 195, 305, 507, 549, 585, 793, 845, 915, 1521, 2379, 2535, 2745, 3721, 3965, 7137, 7605, 10309, 11163, 11895, 18605, 30927, 33489, 35685, 48373, 51545, 55815, 92781, 145119, 154635, 167445, 241865, 435357, 463905, 628849, 725595, 1886547, 2176785, 3144245, 5659641, 9432735, 28298205]

約数ペア:

[(1, 28298205), (3, 9432735), (5, 5659641), (9, 3144245), (13, 2176785), (15, 1886547), (39, 725595), (45, 628849), (61, 463905), (65, 435357), (117, 241865), (169, 167445), (183, 154635), (195, 145119), (305, 92781), (507, 55815), (549, 51545), (585, 48373), (793, 35685), (845, 33489), (915, 30927), (1521, 18605), (2379, 11895), (2535, 11163), (2745, 10309), (3721, 7605), (3965, 7137)]