720522020

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{537703}}^1$

素因数の和:537779

約数の個数: 24

約数和(自身を含む): 1535682624

約数和(自身を除く): 815160604

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 537703, 1075406, 2150812, 2688515, 5377030, 10754060, 36026101, 72052202, 144104404, 180130505, 360261010, 720522020]

約数ペア:

[(1, 720522020), (2, 360261010), (4, 180130505), (5, 144104404), (10, 72052202), (20, 36026101), (67, 10754060), (134, 5377030), (268, 2688515), (335, 2150812), (670, 1075406), (1340, 537703)]