28809525

素因数分解:

$3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{1367}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 47836224

約数和(自身を除く): 19026699

約数列:

[1, 3, 5, 15, 25, 75, 281, 843, 1367, 1405, 4101, 4215, 6835, 7025, 20505, 21075, 34175, 102525, 384127, 1152381, 1920635, 5761905, 9603175, 28809525]

約数ペア:

[(1, 28809525), (3, 9603175), (5, 5761905), (15, 1920635), (25, 1152381), (75, 384127), (281, 102525), (843, 34175), (1367, 21075), (1405, 20505), (4101, 7025), (4215, 6835)]