87789025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 115121600

約数和(自身を除く): 27332575

約数列:

[1, 5, 19, 25, 95, 421, 439, 475, 2105, 2195, 7999, 8341, 10525, 10975, 39995, 41705, 184819, 199975, 208525, 924095, 3511561, 4620475, 17557805, 87789025]

約数ペア:

[(1, 87789025), (5, 17557805), (19, 4620475), (25, 3511561), (95, 924095), (421, 208525), (439, 199975), (475, 184819), (2105, 41705), (2195, 39995), (7999, 10975), (8341, 10525)]