217888910

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{1787}}^1$

素因数の和:2020

約数の個数: 32

約数和(自身を含む): 399725280

約数和(自身を除く): 181836370

約数列:

[1, 2, 5, 10, 89, 137, 178, 274, 445, 685, 890, 1370, 1787, 3574, 8935, 12193, 17870, 24386, 60965, 121930, 159043, 244819, 318086, 489638, 795215, 1224095, 1590430, 2448190, 21788891, 43577782, 108944455, 217888910]

約数ペア:

[(1, 217888910), (2, 108944455), (5, 43577782), (10, 21788891), (89, 2448190), (137, 1590430), (178, 1224095), (274, 795215), (445, 489638), (685, 318086), (890, 244819), (1370, 159043), (1787, 121930), (3574, 60965), (8935, 24386), (12193, 17870)]