20001085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6547}}^1$

素因数の和:6612

約数の個数: 16

約数和(自身を含む): 26401536

約数和(自身を除く): 6400451

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6547, 32735, 85111, 307709, 425555, 1538545, 4000217, 20001085]

約数ペア:

[(1, 20001085), (5, 4000217), (13, 1538545), (47, 425555), (65, 307709), (235, 85111), (611, 32735), (3055, 6547)]