50780420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 110170368

約数和(自身を除く): 59389948

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 431, 548, 685, 860, 862, 1370, 1724, 2155, 2740, 4310, 5891, 8620, 11782, 18533, 23564, 29455, 37066, 58910, 59047, 74132, 92665, 117820, 118094, 185330, 236188, 295235, 370660, 590470, 1180940, 2539021, 5078042, 10156084, 12695105, 25390210, 50780420]

約数ペア:

[(1, 50780420), (2, 25390210), (4, 12695105), (5, 10156084), (10, 5078042), (20, 2539021), (43, 1180940), (86, 590470), (137, 370660), (172, 295235), (215, 236188), (274, 185330), (430, 118094), (431, 117820), (548, 92665), (685, 74132), (860, 59047), (862, 58910), (1370, 37066), (1724, 29455), (2155, 23564), (2740, 18533), (4310, 11782), (5891, 8620)]