28571815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 38335680

約数和(自身を除く): 9763865

約数列:

[1, 5, 17, 29, 67, 85, 145, 173, 335, 493, 865, 1139, 1943, 2465, 2941, 5017, 5695, 9715, 11591, 14705, 25085, 33031, 57955, 85289, 165155, 197047, 336139, 426445, 985235, 1680695, 5714363, 28571815]

約数ペア:

[(1, 28571815), (5, 5714363), (17, 1680695), (29, 985235), (67, 426445), (85, 336139), (145, 197047), (173, 165155), (335, 85289), (493, 57955), (865, 33031), (1139, 25085), (1943, 14705), (2465, 11591), (2941, 9715), (5017, 5695)]