18091920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 71245440

約数和(自身を除く): 53153520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 89, 105, 110, 112, 120, 121, 132, 140, 154, 165, 168, 176, 178, 210, 220, 231, 240, 242, 264, 267, 280, 308, 330, 336, 356, 363, 385, 420, 440, 445, 462, 484, 528, 534, 560, 605, 616, 623, 660, 712, 726, 770, 840, 847, 880, 890, 924, 968, 979, 1068, 1155, 1210, 1232, 1246, 1320, 1335, 1424, 1452, 1540, 1680, 1694, 1780, 1815, 1848, 1869, 1936, 1958, 2136, 2310, 2420, 2492, 2541, 2640, 2670, 2904, 2937, 3080, 3115, 3388, 3560, 3630, 3696, 3738, 3916, 4235, 4272, 4620, 4840, 4895, 4984, 5082, 5340, 5808, 5874, 6160, 6230, 6776, 6853, 7120, 7260, 7476, 7832, 8470, 9240, 9345, 9680, 9790, 9968, 10164, 10680, 10769, 11748, 12460, 12705, 13552, 13706, 14520, 14685, 14952, 15664, 16940, 18480, 18690, 19580, 20328, 20559, 21360, 21538, 23496, 24920, 25410, 27412, 29040, 29370, 29904, 32307, 33880, 34265, 37380, 39160, 40656, 41118, 43076, 46992, 49840, 50820, 53845, 54824, 58740, 64614, 67760, 68530, 74760, 75383, 78320, 82236, 86152, 101640, 102795, 107690, 109648, 117480, 129228, 137060, 149520, 150766, 161535, 164472, 172304, 203280, 205590, 215380, 226149, 234960, 258456, 274120, 301532, 323070, 328944, 376915, 411180, 430760, 452298, 516912, 548240, 603064, 646140, 753830, 822360, 861520, 904596, 1130745, 1206128, 1292280, 1507660, 1644720, 1809192, 2261490, 2584560, 3015320, 3618384, 4522980, 6030640, 9045960, 18091920]

約数ペア:

[(1, 18091920), (2, 9045960), (3, 6030640), (4, 4522980), (5, 3618384), (6, 3015320), (7, 2584560), (8, 2261490), (10, 1809192), (11, 1644720), (12, 1507660), (14, 1292280), (15, 1206128), (16, 1130745), (20, 904596), (21, 861520), (22, 822360), (24, 753830), (28, 646140), (30, 603064), (33, 548240), (35, 516912), (40, 452298), (42, 430760), (44, 411180), (48, 376915), (55, 328944), (56, 323070), (60, 301532), (66, 274120), (70, 258456), (77, 234960), (80, 226149), (84, 215380), (88, 205590), (89, 203280), (105, 172304), (110, 164472), (112, 161535), (120, 150766), (121, 149520), (132, 137060), (140, 129228), (154, 117480), (165, 109648), (168, 107690), (176, 102795), (178, 101640), (210, 86152), (220, 82236), (231, 78320), (240, 75383), (242, 74760), (264, 68530), (267, 67760), (280, 64614), (308, 58740), (330, 54824), (336, 53845), (356, 50820), (363, 49840), (385, 46992), (420, 43076), (440, 41118), (445, 40656), (462, 39160), (484, 37380), (528, 34265), (534, 33880), (560, 32307), (605, 29904), (616, 29370), (623, 29040), (660, 27412), (712, 25410), (726, 24920), (770, 23496), (840, 21538), (847, 21360), (880, 20559), (890, 20328), (924, 19580), (968, 18690), (979, 18480), (1068, 16940), (1155, 15664), (1210, 14952), (1232, 14685), (1246, 14520), (1320, 13706), (1335, 13552), (1424, 12705), (1452, 12460), (1540, 11748), (1680, 10769), (1694, 10680), (1780, 10164), (1815, 9968), (1848, 9790), (1869, 9680), (1936, 9345), (1958, 9240), (2136, 8470), (2310, 7832), (2420, 7476), (2492, 7260), (2541, 7120), (2640, 6853), (2670, 6776), (2904, 6230), (2937, 6160), (3080, 5874), (3115, 5808), (3388, 5340), (3560, 5082), (3630, 4984), (3696, 4895), (3738, 4840), (3916, 4620), (4235, 4272)]