20888390

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 38551680

約数和(自身を除く): 17663290

約数列:

[1, 2, 5, 10, 79, 137, 158, 193, 274, 386, 395, 685, 790, 965, 1370, 1930, 10823, 15247, 21646, 26441, 30494, 52882, 54115, 76235, 108230, 132205, 152470, 264410, 2088839, 4177678, 10444195, 20888390]

約数ペア:

[(1, 20888390), (2, 10444195), (5, 4177678), (10, 2088839), (79, 264410), (137, 152470), (158, 132205), (193, 108230), (274, 76235), (386, 54115), (395, 52882), (685, 30494), (790, 26441), (965, 21646), (1370, 15247), (1930, 10823)]