12985340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{28229}}^1$

素因数の和:28261

約数の個数: 24

約数和(自身を含む): 28455840

約数和(自身を除く): 15470500

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 28229, 56458, 112916, 141145, 282290, 564580, 649267, 1298534, 2597068, 3246335, 6492670, 12985340]

約数ペア:

[(1, 12985340), (2, 6492670), (4, 3246335), (5, 2597068), (10, 1298534), (20, 649267), (23, 564580), (46, 282290), (92, 141145), (115, 112916), (230, 56458), (460, 28229)]