81687312

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:275

約数の個数: 240

約数和(自身を含む): 290070720

約数和(自身を除く): 208383408

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 34, 36, 42, 48, 49, 51, 54, 56, 63, 68, 72, 84, 98, 102, 108, 112, 119, 126, 136, 144, 147, 153, 168, 189, 196, 204, 216, 227, 238, 252, 272, 294, 306, 336, 357, 378, 392, 408, 432, 441, 454, 459, 476, 504, 588, 612, 681, 714, 756, 784, 816, 833, 882, 908, 918, 952, 1008, 1071, 1176, 1224, 1323, 1362, 1428, 1512, 1589, 1666, 1764, 1816, 1836, 1904, 2043, 2142, 2352, 2448, 2499, 2646, 2724, 2856, 3024, 3178, 3213, 3332, 3528, 3632, 3672, 3859, 4086, 4284, 4767, 4998, 5292, 5448, 5712, 6129, 6356, 6426, 6664, 7056, 7344, 7497, 7718, 8172, 8568, 9534, 9996, 10584, 10896, 11123, 11577, 12258, 12712, 12852, 13328, 14301, 14994, 15436, 16344, 17136, 19068, 19992, 21168, 22246, 22491, 23154, 24516, 25424, 25704, 27013, 28602, 29988, 30872, 32688, 33369, 34731, 38136, 39984, 42903, 44492, 44982, 46308, 49032, 51408, 54026, 57204, 59976, 61744, 66738, 69462, 76272, 81039, 85806, 88984, 89964, 92616, 98064, 100107, 104193, 108052, 114408, 119952, 133476, 138924, 162078, 171612, 177968, 179928, 185232, 189091, 200214, 208386, 216104, 228816, 243117, 266952, 277848, 300321, 324156, 343224, 359856, 378182, 400428, 416772, 432208, 486234, 533904, 555696, 567273, 600642, 648312, 686448, 729351, 756364, 800856, 833544, 972468, 1134546, 1201284, 1296624, 1458702, 1512728, 1601712, 1667088, 1701819, 1944936, 2269092, 2402568, 2917404, 3025456, 3403638, 3889872, 4538184, 4805136, 5105457, 5834808, 6807276, 9076368, 10210914, 11669616, 13614552, 20421828, 27229104, 40843656, 81687312]

約数ペア:

[(1, 81687312), (2, 40843656), (3, 27229104), (4, 20421828), (6, 13614552), (7, 11669616), (8, 10210914), (9, 9076368), (12, 6807276), (14, 5834808), (16, 5105457), (17, 4805136), (18, 4538184), (21, 3889872), (24, 3403638), (27, 3025456), (28, 2917404), (34, 2402568), (36, 2269092), (42, 1944936), (48, 1701819), (49, 1667088), (51, 1601712), (54, 1512728), (56, 1458702), (63, 1296624), (68, 1201284), (72, 1134546), (84, 972468), (98, 833544), (102, 800856), (108, 756364), (112, 729351), (119, 686448), (126, 648312), (136, 600642), (144, 567273), (147, 555696), (153, 533904), (168, 486234), (189, 432208), (196, 416772), (204, 400428), (216, 378182), (227, 359856), (238, 343224), (252, 324156), (272, 300321), (294, 277848), (306, 266952), (336, 243117), (357, 228816), (378, 216104), (392, 208386), (408, 200214), (432, 189091), (441, 185232), (454, 179928), (459, 177968), (476, 171612), (504, 162078), (588, 138924), (612, 133476), (681, 119952), (714, 114408), (756, 108052), (784, 104193), (816, 100107), (833, 98064), (882, 92616), (908, 89964), (918, 88984), (952, 85806), (1008, 81039), (1071, 76272), (1176, 69462), (1224, 66738), (1323, 61744), (1362, 59976), (1428, 57204), (1512, 54026), (1589, 51408), (1666, 49032), (1764, 46308), (1816, 44982), (1836, 44492), (1904, 42903), (2043, 39984), (2142, 38136), (2352, 34731), (2448, 33369), (2499, 32688), (2646, 30872), (2724, 29988), (2856, 28602), (3024, 27013), (3178, 25704), (3213, 25424), (3332, 24516), (3528, 23154), (3632, 22491), (3672, 22246), (3859, 21168), (4086, 19992), (4284, 19068), (4767, 17136), (4998, 16344), (5292, 15436), (5448, 14994), (5712, 14301), (6129, 13328), (6356, 12852), (6426, 12712), (6664, 12258), (7056, 11577), (7344, 11123), (7497, 10896), (7718, 10584), (8172, 9996), (8568, 9534)]