281627984

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:289

約数の個数: 120

約数和(自身を含む): 653083200

約数和(自身を除く): 371455216

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 43, 44, 68, 86, 88, 121, 136, 172, 176, 187, 199, 242, 272, 344, 374, 398, 473, 484, 688, 731, 748, 796, 946, 968, 1462, 1496, 1592, 1892, 1936, 2057, 2189, 2924, 2992, 3184, 3383, 3784, 4114, 4378, 5203, 5848, 6766, 7568, 8041, 8228, 8557, 8756, 10406, 11696, 13532, 16082, 16456, 17114, 17512, 20812, 24079, 27064, 32164, 32912, 34228, 35024, 37213, 41624, 48158, 54128, 64328, 68456, 74426, 83248, 88451, 94127, 96316, 128656, 136912, 145469, 148852, 176902, 188254, 192632, 290938, 297704, 353804, 376508, 385264, 409343, 581876, 595408, 707608, 753016, 818686, 1035397, 1163752, 1415216, 1506032, 1600159, 1637372, 2070794, 2327504, 3200318, 3274744, 4141588, 6400636, 6549488, 8283176, 12801272, 16566352, 17601749, 25602544, 35203498, 70406996, 140813992, 281627984]

約数ペア:

[(1, 281627984), (2, 140813992), (4, 70406996), (8, 35203498), (11, 25602544), (16, 17601749), (17, 16566352), (22, 12801272), (34, 8283176), (43, 6549488), (44, 6400636), (68, 4141588), (86, 3274744), (88, 3200318), (121, 2327504), (136, 2070794), (172, 1637372), (176, 1600159), (187, 1506032), (199, 1415216), (242, 1163752), (272, 1035397), (344, 818686), (374, 753016), (398, 707608), (473, 595408), (484, 581876), (688, 409343), (731, 385264), (748, 376508), (796, 353804), (946, 297704), (968, 290938), (1462, 192632), (1496, 188254), (1592, 176902), (1892, 148852), (1936, 145469), (2057, 136912), (2189, 128656), (2924, 96316), (2992, 94127), (3184, 88451), (3383, 83248), (3784, 74426), (4114, 68456), (4378, 64328), (5203, 54128), (5848, 48158), (6766, 41624), (7568, 37213), (8041, 35024), (8228, 34228), (8557, 32912), (8756, 32164), (10406, 27064), (11696, 24079), (13532, 20812), (16082, 17512), (16456, 17114)]