28569825

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 55517280

約数和(自身を除く): 26947455

約数列:

[1, 3, 5, 9, 15, 19, 25, 41, 45, 57, 75, 95, 123, 163, 171, 205, 225, 285, 369, 475, 489, 615, 779, 815, 855, 1025, 1425, 1467, 1845, 2337, 2445, 3075, 3097, 3895, 4075, 4275, 6683, 7011, 7335, 9225, 9291, 11685, 12225, 15485, 19475, 20049, 27873, 33415, 35055, 36675, 46455, 58425, 60147, 77425, 100245, 126977, 139365, 167075, 175275, 232275, 300735, 380931, 501225, 634885, 696825, 1142793, 1503675, 1904655, 3174425, 5713965, 9523275, 28569825]

約数ペア:

[(1, 28569825), (3, 9523275), (5, 5713965), (9, 3174425), (15, 1904655), (19, 1503675), (25, 1142793), (41, 696825), (45, 634885), (57, 501225), (75, 380931), (95, 300735), (123, 232275), (163, 175275), (171, 167075), (205, 139365), (225, 126977), (285, 100245), (369, 77425), (475, 60147), (489, 58425), (615, 46455), (779, 36675), (815, 35055), (855, 33415), (1025, 27873), (1425, 20049), (1467, 19475), (1845, 15485), (2337, 12225), (2445, 11685), (3075, 9291), (3097, 9225), (3895, 7335), (4075, 7011), (4275, 6683)]