208973570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{123653}}^1$

素因数の和:123686

約数の個数: 24

約数和(自身を含む): 407316276

約数和(自身を除く): 198342706

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 123653, 247306, 618265, 1236530, 1607489, 3214978, 8037445, 16074890, 20897357, 41794714, 104486785, 208973570]

約数ペア:

[(1, 208973570), (2, 104486785), (5, 41794714), (10, 20897357), (13, 16074890), (26, 8037445), (65, 3214978), (130, 1607489), (169, 1236530), (338, 618265), (845, 247306), (1690, 123653)]