28196025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 55413120

約数和(自身を除く): 27217095

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 121, 143, 165, 195, 239, 275, 325, 363, 429, 605, 715, 717, 825, 975, 1195, 1573, 1815, 2145, 2629, 3025, 3107, 3575, 3585, 4719, 5975, 7865, 7887, 9075, 9321, 10725, 13145, 15535, 17925, 23595, 28919, 34177, 39325, 39435, 46605, 65725, 77675, 86757, 102531, 117975, 144595, 170885, 197175, 233025, 375947, 433785, 512655, 722975, 854425, 1127841, 1879735, 2168925, 2563275, 5639205, 9398675, 28196025]

約数ペア:

[(1, 28196025), (3, 9398675), (5, 5639205), (11, 2563275), (13, 2168925), (15, 1879735), (25, 1127841), (33, 854425), (39, 722975), (55, 512655), (65, 433785), (75, 375947), (121, 233025), (143, 197175), (165, 170885), (195, 144595), (239, 117975), (275, 102531), (325, 86757), (363, 77675), (429, 65725), (605, 46605), (715, 39435), (717, 39325), (825, 34177), (975, 28919), (1195, 23595), (1573, 17925), (1815, 15535), (2145, 13145), (2629, 10725), (3025, 9321), (3107, 9075), (3575, 7887), (3585, 7865), (4719, 5975)]