81872800

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3529}}^1$

素因数の和:3578

約数の個数: 72

約数和(自身を含む): 206822700

約数和(自身を除く): 124949900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 145, 160, 200, 232, 290, 400, 464, 580, 725, 800, 928, 1160, 1450, 2320, 2900, 3529, 4640, 5800, 7058, 11600, 14116, 17645, 23200, 28232, 35290, 56464, 70580, 88225, 102341, 112928, 141160, 176450, 204682, 282320, 352900, 409364, 511705, 564640, 705800, 818728, 1023410, 1411600, 1637456, 2046820, 2558525, 2823200, 3274912, 4093640, 5117050, 8187280, 10234100, 16374560, 20468200, 40936400, 81872800]

約数ペア:

[(1, 81872800), (2, 40936400), (4, 20468200), (5, 16374560), (8, 10234100), (10, 8187280), (16, 5117050), (20, 4093640), (25, 3274912), (29, 2823200), (32, 2558525), (40, 2046820), (50, 1637456), (58, 1411600), (80, 1023410), (100, 818728), (116, 705800), (145, 564640), (160, 511705), (200, 409364), (232, 352900), (290, 282320), (400, 204682), (464, 176450), (580, 141160), (725, 112928), (800, 102341), (928, 88225), (1160, 70580), (1450, 56464), (2320, 35290), (2900, 28232), (3529, 23200), (4640, 17645), (5800, 14116), (7058, 11600)]