20745450

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{127}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 63329280

約数和(自身を除く): 42583830

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 27, 30, 33, 45, 50, 54, 55, 66, 75, 90, 99, 110, 121, 127, 135, 150, 165, 198, 225, 242, 254, 270, 275, 297, 330, 363, 381, 450, 495, 550, 594, 605, 635, 675, 726, 762, 825, 990, 1089, 1143, 1210, 1270, 1350, 1397, 1485, 1650, 1815, 1905, 2178, 2286, 2475, 2794, 2970, 3025, 3175, 3267, 3429, 3630, 3810, 4191, 4950, 5445, 5715, 6050, 6350, 6534, 6858, 6985, 7425, 8382, 9075, 9525, 10890, 11430, 12573, 13970, 14850, 15367, 16335, 17145, 18150, 19050, 20955, 25146, 27225, 28575, 30734, 32670, 34290, 34925, 37719, 41910, 46101, 54450, 57150, 62865, 69850, 75438, 76835, 81675, 85725, 92202, 104775, 125730, 138303, 153670, 163350, 171450, 188595, 209550, 230505, 276606, 314325, 377190, 384175, 414909, 461010, 628650, 691515, 768350, 829818, 942975, 1152525, 1383030, 1885950, 2074545, 2305050, 3457575, 4149090, 6915150, 10372725, 20745450]

約数ペア:

[(1, 20745450), (2, 10372725), (3, 6915150), (5, 4149090), (6, 3457575), (9, 2305050), (10, 2074545), (11, 1885950), (15, 1383030), (18, 1152525), (22, 942975), (25, 829818), (27, 768350), (30, 691515), (33, 628650), (45, 461010), (50, 414909), (54, 384175), (55, 377190), (66, 314325), (75, 276606), (90, 230505), (99, 209550), (110, 188595), (121, 171450), (127, 163350), (135, 153670), (150, 138303), (165, 125730), (198, 104775), (225, 92202), (242, 85725), (254, 81675), (270, 76835), (275, 75438), (297, 69850), (330, 62865), (363, 57150), (381, 54450), (450, 46101), (495, 41910), (550, 37719), (594, 34925), (605, 34290), (635, 32670), (675, 30734), (726, 28575), (762, 27225), (825, 25146), (990, 20955), (1089, 19050), (1143, 18150), (1210, 17145), (1270, 16335), (1350, 15367), (1397, 14850), (1485, 13970), (1650, 12573), (1815, 11430), (1905, 10890), (2178, 9525), (2286, 9075), (2475, 8382), (2794, 7425), (2970, 6985), (3025, 6858), (3175, 6534), (3267, 6350), (3429, 6050), (3630, 5715), (3810, 5445), (4191, 4950)]