28185235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1167

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 12094445

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 1105, 1109, 1495, 1955, 5083, 5545, 14417, 18853, 25415, 25507, 72085, 94265, 127535, 245089, 331591, 433619, 1225445, 1657955, 2168095, 5637047, 28185235]

約数ペア:

[(1, 28185235), (5, 5637047), (13, 2168095), (17, 1657955), (23, 1225445), (65, 433619), (85, 331591), (115, 245089), (221, 127535), (299, 94265), (391, 72085), (1105, 25507), (1109, 25415), (1495, 18853), (1955, 14417), (5083, 5545)]