81039420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1949}}^1$

素因数の和:1985

約数の個数: 192

約数和(自身を含む): 314496000

約数和(自身を除く): 233456580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 330, 378, 385, 396, 420, 462, 495, 540, 594, 630, 660, 693, 756, 770, 924, 945, 990, 1155, 1188, 1260, 1386, 1485, 1540, 1890, 1949, 1980, 2079, 2310, 2772, 2970, 3465, 3780, 3898, 4158, 4620, 5847, 5940, 6930, 7796, 8316, 9745, 10395, 11694, 13643, 13860, 17541, 19490, 20790, 21439, 23388, 27286, 29235, 35082, 38980, 40929, 41580, 42878, 52623, 54572, 58470, 64317, 68215, 70164, 81858, 85756, 87705, 105246, 107195, 116940, 122787, 128634, 136430, 150073, 163716, 175410, 192951, 204645, 210492, 214390, 245574, 257268, 263115, 272860, 300146, 321585, 350820, 368361, 385902, 409290, 428780, 450219, 491148, 526230, 578853, 600292, 613935, 643170, 736722, 750365, 771804, 818580, 900438, 964755, 1052460, 1157706, 1227870, 1286340, 1350657, 1473444, 1500730, 1800876, 1841805, 1929510, 2251095, 2315412, 2455740, 2701314, 2894265, 3001460, 3683610, 3859020, 4051971, 4502190, 5402628, 5788530, 6753285, 7367220, 8103942, 9004380, 11577060, 13506570, 16207884, 20259855, 27013140, 40519710, 81039420]

約数ペア:

[(1, 81039420), (2, 40519710), (3, 27013140), (4, 20259855), (5, 16207884), (6, 13506570), (7, 11577060), (9, 9004380), (10, 8103942), (11, 7367220), (12, 6753285), (14, 5788530), (15, 5402628), (18, 4502190), (20, 4051971), (21, 3859020), (22, 3683610), (27, 3001460), (28, 2894265), (30, 2701314), (33, 2455740), (35, 2315412), (36, 2251095), (42, 1929510), (44, 1841805), (45, 1800876), (54, 1500730), (55, 1473444), (60, 1350657), (63, 1286340), (66, 1227870), (70, 1157706), (77, 1052460), (84, 964755), (90, 900438), (99, 818580), (105, 771804), (108, 750365), (110, 736722), (126, 643170), (132, 613935), (135, 600292), (140, 578853), (154, 526230), (165, 491148), (180, 450219), (189, 428780), (198, 409290), (210, 385902), (220, 368361), (231, 350820), (252, 321585), (270, 300146), (297, 272860), (308, 263115), (315, 257268), (330, 245574), (378, 214390), (385, 210492), (396, 204645), (420, 192951), (462, 175410), (495, 163716), (540, 150073), (594, 136430), (630, 128634), (660, 122787), (693, 116940), (756, 107195), (770, 105246), (924, 87705), (945, 85756), (990, 81858), (1155, 70164), (1188, 68215), (1260, 64317), (1386, 58470), (1485, 54572), (1540, 52623), (1890, 42878), (1949, 41580), (1980, 40929), (2079, 38980), (2310, 35082), (2772, 29235), (2970, 27286), (3465, 23388), (3780, 21439), (3898, 20790), (4158, 19490), (4620, 17541), (5847, 13860), (5940, 13643), (6930, 11694), (7796, 10395), (8316, 9745)]