991816812

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 3085302528

約数和(自身を除く): 2093485716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 61, 63, 67, 81, 84, 107, 108, 122, 126, 134, 162, 183, 189, 201, 214, 244, 252, 268, 321, 324, 366, 378, 402, 427, 428, 469, 549, 567, 603, 642, 732, 749, 756, 804, 854, 938, 963, 1098, 1134, 1206, 1281, 1284, 1407, 1498, 1647, 1708, 1809, 1876, 1926, 2196, 2247, 2268, 2412, 2562, 2814, 2889, 2996, 3294, 3618, 3843, 3852, 4087, 4221, 4494, 4941, 5124, 5427, 5628, 5778, 6527, 6588, 6741, 7169, 7236, 7686, 8174, 8442, 8667, 8988, 9882, 10854, 11529, 11556, 12261, 12663, 13054, 13482, 14338, 15372, 16348, 16884, 17334, 19581, 19764, 20223, 21507, 21708, 23058, 24522, 25326, 26108, 26964, 28609, 28676, 34587, 34668, 36783, 37989, 39162, 40446, 43014, 45689, 46116, 49044, 50183, 50652, 57218, 58743, 60669, 64521, 69174, 73566, 75978, 78324, 80892, 85827, 86028, 91378, 100366, 110349, 114436, 117486, 121338, 129042, 137067, 138348, 147132, 150549, 151956, 171654, 176229, 182756, 193563, 200732, 220698, 234972, 242676, 257481, 258084, 274134, 301098, 331047, 343308, 352458, 387126, 411201, 437309, 441396, 451647, 514962, 528687, 548268, 580689, 602196, 662094, 704916, 772443, 774252, 822402, 874618, 903294, 1029924, 1057374, 1161378, 1233603, 1311927, 1324188, 1354941, 1544886, 1644804, 1749236, 1806588, 2114748, 2317329, 2322756, 2467206, 2623854, 2709882, 3061163, 3089772, 3700809, 3935781, 4064823, 4634658, 4934412, 5247708, 5419764, 6122326, 7401618, 7871562, 8129646, 9183489, 9269316, 11807343, 12244652, 14803236, 15743124, 16259292, 18366978, 23614686, 27550467, 35422029, 36733956, 47229372, 55100934, 70844058, 82651401, 110201868, 141688116, 165302802, 247954203, 330605604, 495908406, 991816812]

約数ペア:

[(1, 991816812), (2, 495908406), (3, 330605604), (4, 247954203), (6, 165302802), (7, 141688116), (9, 110201868), (12, 82651401), (14, 70844058), (18, 55100934), (21, 47229372), (27, 36733956), (28, 35422029), (36, 27550467), (42, 23614686), (54, 18366978), (61, 16259292), (63, 15743124), (67, 14803236), (81, 12244652), (84, 11807343), (107, 9269316), (108, 9183489), (122, 8129646), (126, 7871562), (134, 7401618), (162, 6122326), (183, 5419764), (189, 5247708), (201, 4934412), (214, 4634658), (244, 4064823), (252, 3935781), (268, 3700809), (321, 3089772), (324, 3061163), (366, 2709882), (378, 2623854), (402, 2467206), (427, 2322756), (428, 2317329), (469, 2114748), (549, 1806588), (567, 1749236), (603, 1644804), (642, 1544886), (732, 1354941), (749, 1324188), (756, 1311927), (804, 1233603), (854, 1161378), (938, 1057374), (963, 1029924), (1098, 903294), (1134, 874618), (1206, 822402), (1281, 774252), (1284, 772443), (1407, 704916), (1498, 662094), (1647, 602196), (1708, 580689), (1809, 548268), (1876, 528687), (1926, 514962), (2196, 451647), (2247, 441396), (2268, 437309), (2412, 411201), (2562, 387126), (2814, 352458), (2889, 343308), (2996, 331047), (3294, 301098), (3618, 274134), (3843, 258084), (3852, 257481), (4087, 242676), (4221, 234972), (4494, 220698), (4941, 200732), (5124, 193563), (5427, 182756), (5628, 176229), (5778, 171654), (6527, 151956), (6588, 150549), (6741, 147132), (7169, 138348), (7236, 137067), (7686, 129042), (8174, 121338), (8442, 117486), (8667, 114436), (8988, 110349), (9882, 100366), (10854, 91378), (11529, 86028), (11556, 85827), (12261, 80892), (12663, 78324), (13054, 75978), (13482, 73566), (14338, 69174), (15372, 64521), (16348, 60669), (16884, 58743), (17334, 57218), (19581, 50652), (19764, 50183), (20223, 49044), (21507, 46116), (21708, 45689), (23058, 43014), (24522, 40446), (25326, 39162), (26108, 37989), (26964, 36783), (28609, 34668), (28676, 34587)]