28265355

素因数分解:

$3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:809

約数の個数: 40

約数和(自身を含む): 51243984

約数和(自身を除く): 22978629

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 505, 691, 909, 1515, 2073, 2727, 3455, 4545, 6219, 8181, 10365, 13635, 18657, 31095, 40905, 55971, 69791, 93285, 209373, 279855, 348955, 628119, 1046865, 1884357, 3140595, 5653071, 9421785, 28265355]

約数ペア:

[(1, 28265355), (3, 9421785), (5, 5653071), (9, 3140595), (15, 1884357), (27, 1046865), (45, 628119), (81, 348955), (101, 279855), (135, 209373), (303, 93285), (405, 69791), (505, 55971), (691, 40905), (909, 31095), (1515, 18657), (2073, 13635), (2727, 10365), (3455, 8181), (4545, 6219)]