20005920

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1$

素因数の和:456

約数の個数: 192

約数和(自身を含む): 76567680

約数和(自身を除く): 56561760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 330, 352, 360, 396, 421, 432, 440, 480, 495, 528, 540, 594, 660, 720, 792, 842, 864, 880, 990, 1056, 1080, 1188, 1263, 1320, 1440, 1485, 1584, 1684, 1760, 1980, 2105, 2160, 2376, 2526, 2640, 2970, 3168, 3368, 3789, 3960, 4210, 4320, 4631, 4752, 5052, 5280, 5940, 6315, 6736, 7578, 7920, 8420, 9262, 9504, 10104, 11367, 11880, 12630, 13472, 13893, 15156, 15840, 16840, 18524, 18945, 20208, 22734, 23155, 23760, 25260, 27786, 30312, 33680, 37048, 37890, 40416, 41679, 45468, 46310, 47520, 50520, 55572, 56835, 60624, 67360, 69465, 74096, 75780, 83358, 90936, 92620, 101040, 111144, 113670, 121248, 125037, 138930, 148192, 151560, 166716, 181872, 185240, 202080, 208395, 222288, 227340, 250074, 277860, 303120, 333432, 363744, 370480, 416790, 444576, 454680, 500148, 555720, 606240, 625185, 666864, 740960, 833580, 909360, 1000296, 1111440, 1250370, 1333728, 1667160, 1818720, 2000592, 2222880, 2500740, 3334320, 4001184, 5001480, 6668640, 10002960, 20005920]

約数ペア:

[(1, 20005920), (2, 10002960), (3, 6668640), (4, 5001480), (5, 4001184), (6, 3334320), (8, 2500740), (9, 2222880), (10, 2000592), (11, 1818720), (12, 1667160), (15, 1333728), (16, 1250370), (18, 1111440), (20, 1000296), (22, 909360), (24, 833580), (27, 740960), (30, 666864), (32, 625185), (33, 606240), (36, 555720), (40, 500148), (44, 454680), (45, 444576), (48, 416790), (54, 370480), (55, 363744), (60, 333432), (66, 303120), (72, 277860), (80, 250074), (88, 227340), (90, 222288), (96, 208395), (99, 202080), (108, 185240), (110, 181872), (120, 166716), (132, 151560), (135, 148192), (144, 138930), (160, 125037), (165, 121248), (176, 113670), (180, 111144), (198, 101040), (216, 92620), (220, 90936), (240, 83358), (264, 75780), (270, 74096), (288, 69465), (297, 67360), (330, 60624), (352, 56835), (360, 55572), (396, 50520), (421, 47520), (432, 46310), (440, 45468), (480, 41679), (495, 40416), (528, 37890), (540, 37048), (594, 33680), (660, 30312), (720, 27786), (792, 25260), (842, 23760), (864, 23155), (880, 22734), (990, 20208), (1056, 18945), (1080, 18524), (1188, 16840), (1263, 15840), (1320, 15156), (1440, 13893), (1485, 13472), (1584, 12630), (1684, 11880), (1760, 11367), (1980, 10104), (2105, 9504), (2160, 9262), (2376, 8420), (2526, 7920), (2640, 7578), (2970, 6736), (3168, 6315), (3368, 5940), (3789, 5280), (3960, 5052), (4210, 4752), (4320, 4631)]