18986880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:93

約数の個数: 256

約数和(自身を含む): 70502400

約数和(自身を除く): 51515520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 29, 30, 31, 32, 33, 40, 44, 48, 55, 58, 60, 62, 64, 66, 80, 87, 88, 93, 96, 110, 116, 120, 124, 128, 132, 145, 155, 160, 165, 174, 176, 186, 192, 220, 232, 240, 248, 264, 290, 310, 319, 320, 330, 341, 348, 352, 372, 384, 435, 440, 464, 465, 480, 496, 528, 580, 620, 638, 640, 660, 682, 696, 704, 744, 870, 880, 899, 928, 930, 957, 960, 992, 1023, 1056, 1160, 1240, 1276, 1320, 1364, 1392, 1408, 1488, 1595, 1705, 1740, 1760, 1798, 1856, 1860, 1914, 1920, 1984, 2046, 2112, 2320, 2480, 2552, 2640, 2697, 2728, 2784, 2976, 3190, 3410, 3480, 3520, 3596, 3712, 3720, 3828, 3968, 4092, 4224, 4495, 4640, 4785, 4960, 5104, 5115, 5280, 5394, 5456, 5568, 5952, 6380, 6820, 6960, 7040, 7192, 7440, 7656, 8184, 8990, 9280, 9570, 9889, 9920, 10208, 10230, 10560, 10788, 10912, 11136, 11904, 12760, 13485, 13640, 13920, 14384, 14880, 15312, 16368, 17980, 18560, 19140, 19778, 19840, 20416, 20460, 21120, 21576, 21824, 25520, 26970, 27280, 27840, 28768, 29667, 29760, 30624, 32736, 35960, 38280, 39556, 40832, 40920, 43152, 43648, 49445, 51040, 53940, 54560, 55680, 57536, 59334, 59520, 61248, 65472, 71920, 76560, 79112, 81840, 86304, 98890, 102080, 107880, 109120, 115072, 118668, 122496, 130944, 143840, 148335, 153120, 158224, 163680, 172608, 197780, 204160, 215760, 218240, 237336, 287680, 296670, 306240, 316448, 327360, 345216, 395560, 431520, 474672, 575360, 593340, 612480, 632896, 654720, 791120, 863040, 949344, 1186680, 1265792, 1582240, 1726080, 1898688, 2373360, 3164480, 3797376, 4746720, 6328960, 9493440, 18986880]

約数ペア:

[(1, 18986880), (2, 9493440), (3, 6328960), (4, 4746720), (5, 3797376), (6, 3164480), (8, 2373360), (10, 1898688), (11, 1726080), (12, 1582240), (15, 1265792), (16, 1186680), (20, 949344), (22, 863040), (24, 791120), (29, 654720), (30, 632896), (31, 612480), (32, 593340), (33, 575360), (40, 474672), (44, 431520), (48, 395560), (55, 345216), (58, 327360), (60, 316448), (62, 306240), (64, 296670), (66, 287680), (80, 237336), (87, 218240), (88, 215760), (93, 204160), (96, 197780), (110, 172608), (116, 163680), (120, 158224), (124, 153120), (128, 148335), (132, 143840), (145, 130944), (155, 122496), (160, 118668), (165, 115072), (174, 109120), (176, 107880), (186, 102080), (192, 98890), (220, 86304), (232, 81840), (240, 79112), (248, 76560), (264, 71920), (290, 65472), (310, 61248), (319, 59520), (320, 59334), (330, 57536), (341, 55680), (348, 54560), (352, 53940), (372, 51040), (384, 49445), (435, 43648), (440, 43152), (464, 40920), (465, 40832), (480, 39556), (496, 38280), (528, 35960), (580, 32736), (620, 30624), (638, 29760), (640, 29667), (660, 28768), (682, 27840), (696, 27280), (704, 26970), (744, 25520), (870, 21824), (880, 21576), (899, 21120), (928, 20460), (930, 20416), (957, 19840), (960, 19778), (992, 19140), (1023, 18560), (1056, 17980), (1160, 16368), (1240, 15312), (1276, 14880), (1320, 14384), (1364, 13920), (1392, 13640), (1408, 13485), (1488, 12760), (1595, 11904), (1705, 11136), (1740, 10912), (1760, 10788), (1798, 10560), (1856, 10230), (1860, 10208), (1914, 9920), (1920, 9889), (1984, 9570), (2046, 9280), (2112, 8990), (2320, 8184), (2480, 7656), (2552, 7440), (2640, 7192), (2697, 7040), (2728, 6960), (2784, 6820), (2976, 6380), (3190, 5952), (3410, 5568), (3480, 5456), (3520, 5394), (3596, 5280), (3712, 5115), (3720, 5104), (3828, 4960), (3968, 4785), (4092, 4640), (4224, 4495)]