20295000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1$

素因数の和:84

約数の個数: 240

約数和(自身を含む): 76756680

約数和(自身を除く): 56461680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 41, 44, 45, 50, 55, 60, 66, 72, 75, 82, 88, 90, 99, 100, 110, 120, 123, 125, 132, 150, 164, 165, 180, 198, 200, 205, 220, 225, 246, 250, 264, 275, 300, 328, 330, 360, 369, 375, 396, 410, 440, 450, 451, 492, 495, 500, 550, 600, 615, 625, 660, 738, 750, 792, 820, 825, 900, 902, 984, 990, 1000, 1025, 1100, 1125, 1230, 1250, 1320, 1353, 1375, 1476, 1500, 1640, 1650, 1800, 1804, 1845, 1875, 1980, 2050, 2200, 2250, 2255, 2460, 2475, 2500, 2706, 2750, 2952, 3000, 3075, 3300, 3608, 3690, 3750, 3960, 4059, 4100, 4125, 4500, 4510, 4920, 4950, 5000, 5125, 5412, 5500, 5625, 6150, 6600, 6765, 6875, 7380, 7500, 8118, 8200, 8250, 9000, 9020, 9225, 9900, 10250, 10824, 11000, 11250, 11275, 12300, 12375, 13530, 13750, 14760, 15000, 15375, 16236, 16500, 18040, 18450, 19800, 20295, 20500, 20625, 22500, 22550, 24600, 24750, 25625, 27060, 27500, 30750, 32472, 33000, 33825, 36900, 40590, 41000, 41250, 45000, 45100, 46125, 49500, 51250, 54120, 55000, 56375, 61500, 61875, 67650, 73800, 76875, 81180, 82500, 90200, 92250, 99000, 101475, 102500, 112750, 123000, 123750, 135300, 153750, 162360, 165000, 169125, 184500, 202950, 205000, 225500, 230625, 247500, 270600, 281875, 307500, 338250, 369000, 405900, 451000, 461250, 495000, 507375, 563750, 615000, 676500, 811800, 845625, 922500, 1014750, 1127500, 1353000, 1691250, 1845000, 2029500, 2255000, 2536875, 3382500, 4059000, 5073750, 6765000, 10147500, 20295000]

約数ペア:

[(1, 20295000), (2, 10147500), (3, 6765000), (4, 5073750), (5, 4059000), (6, 3382500), (8, 2536875), (9, 2255000), (10, 2029500), (11, 1845000), (12, 1691250), (15, 1353000), (18, 1127500), (20, 1014750), (22, 922500), (24, 845625), (25, 811800), (30, 676500), (33, 615000), (36, 563750), (40, 507375), (41, 495000), (44, 461250), (45, 451000), (50, 405900), (55, 369000), (60, 338250), (66, 307500), (72, 281875), (75, 270600), (82, 247500), (88, 230625), (90, 225500), (99, 205000), (100, 202950), (110, 184500), (120, 169125), (123, 165000), (125, 162360), (132, 153750), (150, 135300), (164, 123750), (165, 123000), (180, 112750), (198, 102500), (200, 101475), (205, 99000), (220, 92250), (225, 90200), (246, 82500), (250, 81180), (264, 76875), (275, 73800), (300, 67650), (328, 61875), (330, 61500), (360, 56375), (369, 55000), (375, 54120), (396, 51250), (410, 49500), (440, 46125), (450, 45100), (451, 45000), (492, 41250), (495, 41000), (500, 40590), (550, 36900), (600, 33825), (615, 33000), (625, 32472), (660, 30750), (738, 27500), (750, 27060), (792, 25625), (820, 24750), (825, 24600), (900, 22550), (902, 22500), (984, 20625), (990, 20500), (1000, 20295), (1025, 19800), (1100, 18450), (1125, 18040), (1230, 16500), (1250, 16236), (1320, 15375), (1353, 15000), (1375, 14760), (1476, 13750), (1500, 13530), (1640, 12375), (1650, 12300), (1800, 11275), (1804, 11250), (1845, 11000), (1875, 10824), (1980, 10250), (2050, 9900), (2200, 9225), (2250, 9020), (2255, 9000), (2460, 8250), (2475, 8200), (2500, 8118), (2706, 7500), (2750, 7380), (2952, 6875), (3000, 6765), (3075, 6600), (3300, 6150), (3608, 5625), (3690, 5500), (3750, 5412), (3960, 5125), (4059, 5000), (4100, 4950), (4125, 4920), (4500, 4510)]