28838215

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3797}}^1$

素因数の和:3847

約数の個数: 24

約数和(自身を含む): 41565312

約数和(自身を除く): 12727097

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 3797, 7595, 18985, 26579, 117707, 132895, 186053, 588535, 823949, 930265, 4119745, 5767643, 28838215]

約数ペア:

[(1, 28838215), (5, 5767643), (7, 4119745), (31, 930265), (35, 823949), (49, 588535), (155, 186053), (217, 132895), (245, 117707), (1085, 26579), (1519, 18985), (3797, 7595)]