4287855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 8064000

約数和(自身を除く): 3776145

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 1999, 2145, 5997, 9995, 21989, 25987, 29985, 65967, 77961, 109945, 129935, 285857, 329835, 389805, 857571, 1429285, 4287855]

約数ペア:

[(1, 4287855), (3, 1429285), (5, 857571), (11, 389805), (13, 329835), (15, 285857), (33, 129935), (39, 109945), (55, 77961), (65, 65967), (143, 29985), (165, 25987), (195, 21989), (429, 9995), (715, 5997), (1999, 2145)]