28455765

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1999}}^1$

素因数の和:2093

約数の個数: 32

約数和(自身を含む): 49728000

約数和(自身を除く): 21272235

約数列:

[1, 3, 5, 13, 15, 39, 65, 73, 195, 219, 365, 949, 1095, 1999, 2847, 4745, 5997, 9995, 14235, 25987, 29985, 77961, 129935, 145927, 389805, 437781, 729635, 1897051, 2188905, 5691153, 9485255, 28455765]

約数ペア:

[(1, 28455765), (3, 9485255), (5, 5691153), (13, 2188905), (15, 1897051), (39, 729635), (65, 437781), (73, 389805), (195, 145927), (219, 129935), (365, 77961), (949, 29985), (1095, 25987), (1999, 14235), (2847, 9995), (4745, 5997)]