28490995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{5281}}^1$

素因数の和:5382

約数の個数: 16

約数和(自身を含む): 37269792

約数和(自身を除く): 8778797

約数列:

[1, 5, 13, 65, 83, 415, 1079, 5281, 5395, 26405, 68653, 343265, 438323, 2191615, 5698199, 28490995]

約数ペア:

[(1, 28490995), (5, 5698199), (13, 2191615), (65, 438323), (83, 343265), (415, 68653), (1079, 26405), (5281, 5395)]