520042940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{257447}}^1$

素因数の和:257557

約数の個数: 24

約数和(自身を含む): 1102907232

約数和(自身を除く): 582864292

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 257447, 514894, 1029788, 1287235, 2574470, 5148940, 26002147, 52004294, 104008588, 130010735, 260021470, 520042940]

約数ペア:

[(1, 520042940), (2, 260021470), (4, 130010735), (5, 104008588), (10, 52004294), (20, 26002147), (101, 5148940), (202, 2574470), (404, 1287235), (505, 1029788), (1010, 514894), (2020, 257447)]