18821880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1$

素因数の和:139

約数の個数: 288

約数和(自身を含む): 78427440

約数和(自身を除く): 59605560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 49, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 97, 98, 99, 105, 110, 120, 126, 132, 140, 147, 154, 165, 168, 180, 194, 196, 198, 210, 220, 231, 245, 252, 264, 280, 291, 294, 308, 315, 330, 360, 385, 388, 392, 396, 420, 440, 441, 462, 485, 490, 495, 504, 539, 582, 588, 616, 630, 660, 679, 693, 735, 770, 776, 792, 840, 873, 882, 924, 970, 980, 990, 1067, 1078, 1155, 1164, 1176, 1260, 1320, 1358, 1386, 1455, 1470, 1540, 1617, 1746, 1764, 1848, 1940, 1960, 1980, 2037, 2134, 2156, 2205, 2310, 2328, 2520, 2695, 2716, 2772, 2910, 2940, 3080, 3201, 3234, 3395, 3465, 3492, 3528, 3880, 3960, 4074, 4268, 4312, 4365, 4410, 4620, 4753, 4851, 5335, 5390, 5432, 5544, 5820, 5880, 6111, 6402, 6468, 6790, 6930, 6984, 7469, 8085, 8148, 8536, 8730, 8820, 9240, 9506, 9603, 9702, 10185, 10670, 10780, 11640, 12222, 12804, 12936, 13580, 13860, 14259, 14938, 16005, 16170, 16296, 17460, 17640, 19012, 19206, 19404, 20370, 21340, 21560, 22407, 23765, 24255, 24444, 25608, 27160, 27720, 28518, 29876, 30555, 32010, 32340, 34920, 37345, 38024, 38412, 38808, 40740, 42680, 42777, 44814, 47530, 48015, 48510, 48888, 52283, 57036, 59752, 61110, 64020, 64680, 67221, 71295, 74690, 76824, 81480, 85554, 89628, 95060, 96030, 97020, 104566, 112035, 114072, 122220, 128040, 134442, 142590, 149380, 156849, 171108, 179256, 190120, 192060, 194040, 209132, 213885, 224070, 244440, 261415, 268884, 285180, 298760, 313698, 336105, 342216, 384120, 418264, 427770, 448140, 470547, 522830, 537768, 570360, 627396, 672210, 784245, 855540, 896280, 941094, 1045660, 1254792, 1344420, 1568490, 1711080, 1882188, 2091320, 2352735, 2688840, 3136980, 3764376, 4705470, 6273960, 9410940, 18821880]

約数ペア:

[(1, 18821880), (2, 9410940), (3, 6273960), (4, 4705470), (5, 3764376), (6, 3136980), (7, 2688840), (8, 2352735), (9, 2091320), (10, 1882188), (11, 1711080), (12, 1568490), (14, 1344420), (15, 1254792), (18, 1045660), (20, 941094), (21, 896280), (22, 855540), (24, 784245), (28, 672210), (30, 627396), (33, 570360), (35, 537768), (36, 522830), (40, 470547), (42, 448140), (44, 427770), (45, 418264), (49, 384120), (55, 342216), (56, 336105), (60, 313698), (63, 298760), (66, 285180), (70, 268884), (72, 261415), (77, 244440), (84, 224070), (88, 213885), (90, 209132), (97, 194040), (98, 192060), (99, 190120), (105, 179256), (110, 171108), (120, 156849), (126, 149380), (132, 142590), (140, 134442), (147, 128040), (154, 122220), (165, 114072), (168, 112035), (180, 104566), (194, 97020), (196, 96030), (198, 95060), (210, 89628), (220, 85554), (231, 81480), (245, 76824), (252, 74690), (264, 71295), (280, 67221), (291, 64680), (294, 64020), (308, 61110), (315, 59752), (330, 57036), (360, 52283), (385, 48888), (388, 48510), (392, 48015), (396, 47530), (420, 44814), (440, 42777), (441, 42680), (462, 40740), (485, 38808), (490, 38412), (495, 38024), (504, 37345), (539, 34920), (582, 32340), (588, 32010), (616, 30555), (630, 29876), (660, 28518), (679, 27720), (693, 27160), (735, 25608), (770, 24444), (776, 24255), (792, 23765), (840, 22407), (873, 21560), (882, 21340), (924, 20370), (970, 19404), (980, 19206), (990, 19012), (1067, 17640), (1078, 17460), (1155, 16296), (1164, 16170), (1176, 16005), (1260, 14938), (1320, 14259), (1358, 13860), (1386, 13580), (1455, 12936), (1470, 12804), (1540, 12222), (1617, 11640), (1746, 10780), (1764, 10670), (1848, 10185), (1940, 9702), (1960, 9603), (1980, 9506), (2037, 9240), (2134, 8820), (2156, 8730), (2205, 8536), (2310, 8148), (2328, 8085), (2520, 7469), (2695, 6984), (2716, 6930), (2772, 6790), (2910, 6468), (2940, 6402), (3080, 6111), (3201, 5880), (3234, 5820), (3395, 5544), (3465, 5432), (3492, 5390), (3528, 5335), (3880, 4851), (3960, 4753), (4074, 4620), (4268, 4410), (4312, 4365)]