71639984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{344423}}^1$

素因数の和:344444

約数の個数: 20

約数和(自身を含む): 149480016

約数和(自身を除く): 77840032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 344423, 688846, 1377692, 2755384, 4477499, 5510768, 8954998, 17909996, 35819992, 71639984]

約数ペア:

[(1, 71639984), (2, 35819992), (4, 17909996), (8, 8954998), (13, 5510768), (16, 4477499), (26, 2755384), (52, 1377692), (104, 688846), (208, 344423)]