20123352500

素因数分解:

$2^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{113371}}^1$

素因数の和:113466

約数の個数: 60

約数和(自身を含む): 44625940128

約数和(自身を除く): 24502587628

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 500, 625, 710, 1250, 1420, 1775, 2500, 3550, 7100, 8875, 17750, 35500, 44375, 88750, 113371, 177500, 226742, 453484, 566855, 1133710, 2267420, 2834275, 5668550, 8049341, 11337100, 14171375, 16098682, 28342750, 32197364, 40246705, 56685500, 70856875, 80493410, 141713750, 160986820, 201233525, 283427500, 402467050, 804934100, 1006167625, 2012335250, 4024670500, 5030838125, 10061676250, 20123352500]

約数ペア:

[(1, 20123352500), (2, 10061676250), (4, 5030838125), (5, 4024670500), (10, 2012335250), (20, 1006167625), (25, 804934100), (50, 402467050), (71, 283427500), (100, 201233525), (125, 160986820), (142, 141713750), (250, 80493410), (284, 70856875), (355, 56685500), (500, 40246705), (625, 32197364), (710, 28342750), (1250, 16098682), (1420, 14171375), (1775, 11337100), (2500, 8049341), (3550, 5668550), (7100, 2834275), (8875, 2267420), (17750, 1133710), (35500, 566855), (44375, 453484), (88750, 226742), (113371, 177500)]