18746280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 192

約数和(自身を含む): 71660160

約数和(自身を除く): 52913880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 56, 60, 63, 70, 72, 84, 86, 90, 105, 120, 126, 129, 140, 168, 172, 173, 180, 210, 215, 252, 258, 280, 301, 315, 344, 346, 360, 387, 420, 430, 504, 516, 519, 602, 630, 645, 692, 774, 840, 860, 865, 903, 1032, 1038, 1204, 1211, 1260, 1290, 1384, 1505, 1548, 1557, 1720, 1730, 1806, 1935, 2076, 2408, 2422, 2520, 2580, 2595, 2709, 3010, 3096, 3114, 3460, 3612, 3633, 3870, 4152, 4515, 4844, 5160, 5190, 5418, 6020, 6055, 6228, 6920, 7224, 7266, 7439, 7740, 7785, 9030, 9688, 10380, 10836, 10899, 12040, 12110, 12456, 13545, 14532, 14878, 15480, 15570, 18060, 18165, 20760, 21672, 21798, 22317, 24220, 27090, 29064, 29756, 31140, 36120, 36330, 37195, 43596, 44634, 48440, 52073, 54180, 54495, 59512, 62280, 66951, 72660, 74390, 87192, 89268, 104146, 108360, 108990, 111585, 133902, 145320, 148780, 156219, 178536, 208292, 217980, 223170, 260365, 267804, 297560, 312438, 334755, 416584, 435960, 446340, 468657, 520730, 535608, 624876, 669510, 781095, 892680, 937314, 1041460, 1249752, 1339020, 1562190, 1874628, 2082920, 2343285, 2678040, 3124380, 3749256, 4686570, 6248760, 9373140, 18746280]

約数ペア:

[(1, 18746280), (2, 9373140), (3, 6248760), (4, 4686570), (5, 3749256), (6, 3124380), (7, 2678040), (8, 2343285), (9, 2082920), (10, 1874628), (12, 1562190), (14, 1339020), (15, 1249752), (18, 1041460), (20, 937314), (21, 892680), (24, 781095), (28, 669510), (30, 624876), (35, 535608), (36, 520730), (40, 468657), (42, 446340), (43, 435960), (45, 416584), (56, 334755), (60, 312438), (63, 297560), (70, 267804), (72, 260365), (84, 223170), (86, 217980), (90, 208292), (105, 178536), (120, 156219), (126, 148780), (129, 145320), (140, 133902), (168, 111585), (172, 108990), (173, 108360), (180, 104146), (210, 89268), (215, 87192), (252, 74390), (258, 72660), (280, 66951), (301, 62280), (315, 59512), (344, 54495), (346, 54180), (360, 52073), (387, 48440), (420, 44634), (430, 43596), (504, 37195), (516, 36330), (519, 36120), (602, 31140), (630, 29756), (645, 29064), (692, 27090), (774, 24220), (840, 22317), (860, 21798), (865, 21672), (903, 20760), (1032, 18165), (1038, 18060), (1204, 15570), (1211, 15480), (1260, 14878), (1290, 14532), (1384, 13545), (1505, 12456), (1548, 12110), (1557, 12040), (1720, 10899), (1730, 10836), (1806, 10380), (1935, 9688), (2076, 9030), (2408, 7785), (2422, 7740), (2520, 7439), (2580, 7266), (2595, 7224), (2709, 6920), (3010, 6228), (3096, 6055), (3114, 6020), (3460, 5418), (3612, 5190), (3633, 5160), (3870, 4844), (4152, 4515)]