16118765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 21880320

約数和(自身を除く): 5761555

約数列:

[1, 5, 13, 43, 65, 73, 79, 215, 365, 395, 559, 949, 1027, 2795, 3139, 3397, 4745, 5135, 5767, 15695, 16985, 28835, 40807, 44161, 74971, 204035, 220805, 247981, 374855, 1239905, 3223753, 16118765]

約数ペア:

[(1, 16118765), (5, 3223753), (13, 1239905), (43, 374855), (65, 247981), (73, 220805), (79, 204035), (215, 74971), (365, 44161), (395, 40807), (559, 28835), (949, 16985), (1027, 15695), (2795, 5767), (3139, 5135), (3397, 4745)]