28400265

素因数分解:

$3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1381}}^1$

素因数の和:1849

約数の個数: 24

約数和(自身を含む): 49370568

約数和(自身を除く): 20970303

約数列:

[1, 3, 5, 9, 15, 45, 457, 1371, 1381, 2285, 4113, 4143, 6855, 6905, 12429, 20565, 20715, 62145, 631117, 1893351, 3155585, 5680053, 9466755, 28400265]

約数ペア:

[(1, 28400265), (3, 9466755), (5, 5680053), (9, 3155585), (15, 1893351), (45, 631117), (457, 62145), (1371, 20715), (1381, 20565), (2285, 12429), (4113, 6905), (4143, 6855)]