20955.00000000

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 192

約数和(自身を含む): 297443328

約数和(自身を除く): 205812828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 37, 39, 50, 52, 60, 65, 74, 75, 78, 100, 111, 125, 127, 130, 148, 150, 156, 185, 195, 222, 250, 254, 260, 300, 325, 370, 375, 381, 390, 444, 481, 500, 508, 555, 635, 650, 740, 750, 762, 780, 925, 962, 975, 1110, 1270, 1300, 1443, 1500, 1524, 1625, 1651, 1850, 1905, 1924, 1950, 2220, 2405, 2540, 2775, 2886, 3175, 3250, 3302, 3700, 3810, 3900, 4625, 4699, 4810, 4875, 4953, 5550, 5772, 6350, 6500, 6604, 7215, 7620, 8255, 9250, 9398, 9525, 9620, 9750, 9906, 11100, 12025, 12700, 13875, 14097, 14430, 15875, 16510, 18500, 18796, 19050, 19500, 19812, 23495, 24050, 24765, 27750, 28194, 28860, 31750, 33020, 36075, 38100, 41275, 46990, 47625, 48100, 49530, 55500, 56388, 60125, 61087, 63500, 70485, 72150, 82550, 93980, 95250, 99060, 117475, 120250, 122174, 123825, 140970, 144300, 165100, 180375, 183261, 190500, 206375, 234950, 240500, 244348, 247650, 281940, 305435, 352425, 360750, 366522, 412750, 469900, 495300, 587375, 610870, 619125, 704850, 721500, 733044, 825500, 916305, 1174750, 1221740, 1238250, 1409700, 1527175, 1762125, 1832610, 2349500, 2476500, 3054350, 3524250, 3665220, 4581525, 6108700, 7048500, 7635875, 9163050, 15271750, 18326100, 22907625, 30543500, 45815250, 91630500]

約数ペア:

[(1, 91630500), (2, 45815250), (3, 30543500), (4, 22907625), (5, 18326100), (6, 15271750), (10, 9163050), (12, 7635875), (13, 7048500), (15, 6108700), (20, 4581525), (25, 3665220), (26, 3524250), (30, 3054350), (37, 2476500), (39, 2349500), (50, 1832610), (52, 1762125), (60, 1527175), (65, 1409700), (74, 1238250), (75, 1221740), (78, 1174750), (100, 916305), (111, 825500), (125, 733044), (127, 721500), (130, 704850), (148, 619125), (150, 610870), (156, 587375), (185, 495300), (195, 469900), (222, 412750), (250, 366522), (254, 360750), (260, 352425), (300, 305435), (325, 281940), (370, 247650), (375, 244348), (381, 240500), (390, 234950), (444, 206375), (481, 190500), (500, 183261), (508, 180375), (555, 165100), (635, 144300), (650, 140970), (740, 123825), (750, 122174), (762, 120250), (780, 117475), (925, 99060), (962, 95250), (975, 93980), (1110, 82550), (1270, 72150), (1300, 70485), (1443, 63500), (1500, 61087), (1524, 60125), (1625, 56388), (1651, 55500), (1850, 49530), (1905, 48100), (1924, 47625), (1950, 46990), (2220, 41275), (2405, 38100), (2540, 36075), (2775, 33020), (2886, 31750), (3175, 28860), (3250, 28194), (3302, 27750), (3700, 24765), (3810, 24050), (3900, 23495), (4625, 19812), (4699, 19500), (4810, 19050), (4875, 18796), (4953, 18500), (5550, 16510), (5772, 15875), (6350, 14430), (6500, 14097), (6604, 13875), (7215, 12700), (7620, 12025), (8255, 11100), (9250, 9906), (9398, 9750), (9525, 9620)]