18018720

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:164

約数の個数: 192

約数和(自身を含む): 65197440

約数和(自身を除く): 47178720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 43, 45, 48, 54, 60, 72, 80, 86, 90, 96, 97, 108, 120, 129, 135, 144, 160, 172, 180, 194, 215, 216, 240, 258, 270, 288, 291, 344, 360, 387, 388, 430, 432, 480, 485, 516, 540, 582, 645, 688, 720, 774, 776, 860, 864, 873, 970, 1032, 1080, 1161, 1164, 1290, 1376, 1440, 1455, 1548, 1552, 1720, 1746, 1935, 1940, 2064, 2160, 2322, 2328, 2580, 2619, 2910, 3096, 3104, 3440, 3492, 3870, 3880, 4128, 4171, 4320, 4365, 4644, 4656, 5160, 5238, 5805, 5820, 6192, 6880, 6984, 7740, 7760, 8342, 8730, 9288, 9312, 10320, 10476, 11610, 11640, 12384, 12513, 13095, 13968, 15480, 15520, 16684, 17460, 18576, 20640, 20855, 20952, 23220, 23280, 25026, 26190, 27936, 30960, 33368, 34920, 37152, 37539, 41710, 41904, 46440, 46560, 50052, 52380, 61920, 62565, 66736, 69840, 75078, 83420, 83808, 92880, 100104, 104760, 112617, 125130, 133472, 139680, 150156, 166840, 185760, 187695, 200208, 209520, 225234, 250260, 300312, 333680, 375390, 400416, 419040, 450468, 500520, 563085, 600624, 667360, 750780, 900936, 1001040, 1126170, 1201248, 1501560, 1801872, 2002080, 2252340, 3003120, 3603744, 4504680, 6006240, 9009360, 18018720]

約数ペア:

[(1, 18018720), (2, 9009360), (3, 6006240), (4, 4504680), (5, 3603744), (6, 3003120), (8, 2252340), (9, 2002080), (10, 1801872), (12, 1501560), (15, 1201248), (16, 1126170), (18, 1001040), (20, 900936), (24, 750780), (27, 667360), (30, 600624), (32, 563085), (36, 500520), (40, 450468), (43, 419040), (45, 400416), (48, 375390), (54, 333680), (60, 300312), (72, 250260), (80, 225234), (86, 209520), (90, 200208), (96, 187695), (97, 185760), (108, 166840), (120, 150156), (129, 139680), (135, 133472), (144, 125130), (160, 112617), (172, 104760), (180, 100104), (194, 92880), (215, 83808), (216, 83420), (240, 75078), (258, 69840), (270, 66736), (288, 62565), (291, 61920), (344, 52380), (360, 50052), (387, 46560), (388, 46440), (430, 41904), (432, 41710), (480, 37539), (485, 37152), (516, 34920), (540, 33368), (582, 30960), (645, 27936), (688, 26190), (720, 25026), (774, 23280), (776, 23220), (860, 20952), (864, 20855), (873, 20640), (970, 18576), (1032, 17460), (1080, 16684), (1161, 15520), (1164, 15480), (1290, 13968), (1376, 13095), (1440, 12513), (1455, 12384), (1548, 11640), (1552, 11610), (1720, 10476), (1746, 10320), (1935, 9312), (1940, 9288), (2064, 8730), (2160, 8342), (2322, 7760), (2328, 7740), (2580, 6984), (2619, 6880), (2910, 6192), (3096, 5820), (3104, 5805), (3440, 5238), (3492, 5160), (3870, 4656), (3880, 4644), (4128, 4365), (4171, 4320)]