18894805

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{419}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 4692395

約数列:

[1, 5, 29, 145, 311, 419, 1555, 2095, 9019, 12151, 45095, 60755, 130309, 651545, 3778961, 18894805]

約数ペア:

[(1, 18894805), (5, 3778961), (29, 651545), (145, 130309), (311, 60755), (419, 45095), (1555, 12151), (2095, 9019)]