1991337568

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:261

約数の個数: 192

約数和(自身を含む): 4742115840

約数和(自身を除く): 2750778272

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 43, 44, 68, 71, 86, 88, 109, 136, 142, 172, 176, 187, 218, 272, 284, 344, 352, 374, 436, 473, 544, 568, 688, 731, 748, 781, 872, 946, 1136, 1199, 1207, 1376, 1462, 1496, 1562, 1744, 1853, 1892, 2272, 2398, 2414, 2924, 2992, 3053, 3124, 3488, 3706, 3784, 4687, 4796, 4828, 5848, 5984, 6106, 6248, 7412, 7568, 7739, 8041, 9374, 9592, 9656, 11696, 12212, 12496, 13277, 14824, 15136, 15478, 16082, 18748, 19184, 19312, 20383, 23392, 24424, 24992, 26554, 29648, 30956, 32164, 33583, 37496, 38368, 38624, 40766, 48848, 51557, 51901, 53108, 59296, 61912, 64328, 67166, 74992, 79679, 81532, 85129, 97696, 103114, 103802, 106216, 123824, 128656, 131563, 134332, 149984, 159358, 163064, 170258, 206228, 207604, 212432, 247648, 257312, 263126, 268664, 318716, 326128, 332777, 340516, 412456, 415208, 424864, 526252, 537328, 570911, 637432, 652256, 665554, 681032, 824912, 830416, 876469, 1052504, 1074656, 1141822, 1274864, 1331108, 1362064, 1447193, 1649824, 1660832, 1752938, 2105008, 2283644, 2549728, 2662216, 2724128, 2894386, 3505876, 3660547, 4210016, 4567288, 5324432, 5657209, 5788772, 7011752, 7321094, 9134576, 10648864, 11314418, 11577544, 14023504, 14642188, 18269152, 22628836, 23155088, 28047008, 29284376, 45257672, 46310176, 58568752, 62229299, 90515344, 117137504, 124458598, 181030688, 248917196, 497834392, 995668784, 1991337568]

約数ペア:

[(1, 1991337568), (2, 995668784), (4, 497834392), (8, 248917196), (11, 181030688), (16, 124458598), (17, 117137504), (22, 90515344), (32, 62229299), (34, 58568752), (43, 46310176), (44, 45257672), (68, 29284376), (71, 28047008), (86, 23155088), (88, 22628836), (109, 18269152), (136, 14642188), (142, 14023504), (172, 11577544), (176, 11314418), (187, 10648864), (218, 9134576), (272, 7321094), (284, 7011752), (344, 5788772), (352, 5657209), (374, 5324432), (436, 4567288), (473, 4210016), (544, 3660547), (568, 3505876), (688, 2894386), (731, 2724128), (748, 2662216), (781, 2549728), (872, 2283644), (946, 2105008), (1136, 1752938), (1199, 1660832), (1207, 1649824), (1376, 1447193), (1462, 1362064), (1496, 1331108), (1562, 1274864), (1744, 1141822), (1853, 1074656), (1892, 1052504), (2272, 876469), (2398, 830416), (2414, 824912), (2924, 681032), (2992, 665554), (3053, 652256), (3124, 637432), (3488, 570911), (3706, 537328), (3784, 526252), (4687, 424864), (4796, 415208), (4828, 412456), (5848, 340516), (5984, 332777), (6106, 326128), (6248, 318716), (7412, 268664), (7568, 263126), (7739, 257312), (8041, 247648), (9374, 212432), (9592, 207604), (9656, 206228), (11696, 170258), (12212, 163064), (12496, 159358), (13277, 149984), (14824, 134332), (15136, 131563), (15478, 128656), (16082, 123824), (18748, 106216), (19184, 103802), (19312, 103114), (20383, 97696), (23392, 85129), (24424, 81532), (24992, 79679), (26554, 74992), (29648, 67166), (30956, 64328), (32164, 61912), (33583, 59296), (37496, 53108), (38368, 51901), (38624, 51557), (40766, 48848)]