28032745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1103}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 12029207

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 1103, 1105, 1495, 1955, 5083, 5515, 14339, 18751, 25369, 25415, 71695, 93755, 126845, 243763, 329797, 431273, 1218815, 1648985, 2156365, 5606549, 28032745]

約数ペア:

[(1, 28032745), (5, 5606549), (13, 2156365), (17, 1648985), (23, 1218815), (65, 431273), (85, 329797), (115, 243763), (221, 126845), (299, 93755), (391, 71695), (1103, 25415), (1105, 25369), (1495, 18751), (1955, 14339), (5083, 5515)]