20610928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:721

約数の個数: 40

約数和(自身を含む): 43309728

約数和(自身を除く): 22698800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 197, 208, 394, 503, 788, 1006, 1576, 2012, 2561, 3152, 4024, 5122, 6539, 8048, 10244, 13078, 20488, 26156, 40976, 52312, 99091, 104624, 198182, 396364, 792728, 1288183, 1585456, 2576366, 5152732, 10305464, 20610928]

約数ペア:

[(1, 20610928), (2, 10305464), (4, 5152732), (8, 2576366), (13, 1585456), (16, 1288183), (26, 792728), (52, 396364), (104, 198182), (197, 104624), (208, 99091), (394, 52312), (503, 40976), (788, 26156), (1006, 20488), (1576, 13078), (2012, 10244), (2561, 8048), (3152, 6539), (4024, 5122)]