28388395

素因数分解:

$5^1\times 7^3\times {\mathrm{16553}}^1$

素因数の和:16579

約数の個数: 16

約数和(自身を含む): 39729600

約数和(自身を除く): 11341205

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 16553, 82765, 115871, 579355, 811097, 4055485, 5677679, 28388395]

約数ペア:

[(1, 28388395), (5, 5677679), (7, 4055485), (35, 811097), (49, 579355), (245, 115871), (343, 82765), (1715, 16553)]