991263936

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:639

約数の個数: 224

約数和(自身を含む): 3047804928

約数和(自身を除く): 2056540992

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 31, 32, 39, 46, 48, 52, 62, 64, 69, 78, 92, 93, 96, 104, 124, 138, 156, 184, 186, 192, 208, 248, 276, 299, 312, 368, 372, 403, 416, 496, 552, 557, 598, 624, 713, 736, 744, 806, 832, 897, 992, 1104, 1114, 1196, 1209, 1248, 1426, 1472, 1488, 1612, 1671, 1794, 1984, 2139, 2208, 2228, 2392, 2418, 2496, 2852, 2976, 3224, 3342, 3588, 4278, 4416, 4456, 4784, 4836, 5704, 5952, 6448, 6684, 7176, 7241, 8556, 8912, 9269, 9568, 9672, 11408, 12811, 12896, 13368, 14352, 14482, 17112, 17267, 17824, 18538, 19136, 19344, 21723, 22816, 25622, 25792, 26736, 27807, 28704, 28964, 34224, 34534, 35648, 37076, 38433, 38688, 43446, 45632, 51244, 51801, 53472, 55614, 57408, 57928, 68448, 69068, 74152, 76866, 77376, 86892, 102488, 103602, 106944, 111228, 115856, 136896, 138136, 148304, 153732, 166543, 173784, 204976, 207204, 222456, 224471, 231712, 276272, 296608, 307464, 333086, 347568, 397141, 409952, 414408, 444912, 448942, 463424, 499629, 552544, 593216, 614928, 666172, 673413, 695136, 794282, 819904, 828816, 889824, 897884, 999258, 1105088, 1191423, 1229856, 1332344, 1346826, 1390272, 1588564, 1657632, 1779648, 1795768, 1998516, 2382846, 2459712, 2664688, 2693652, 3177128, 3315264, 3591536, 3997032, 4765692, 5162833, 5329376, 5387304, 6354256, 7183072, 7994064, 9531384, 10325666, 10658752, 10774608, 12708512, 14366144, 15488499, 15988128, 19062768, 20651332, 21549216, 25417024, 30976998, 31976256, 38125536, 41302664, 43098432, 61953996, 76251072, 82605328, 123907992, 165210656, 247815984, 330421312, 495631968, 991263936]

約数ペア:

[(1, 991263936), (2, 495631968), (3, 330421312), (4, 247815984), (6, 165210656), (8, 123907992), (12, 82605328), (13, 76251072), (16, 61953996), (23, 43098432), (24, 41302664), (26, 38125536), (31, 31976256), (32, 30976998), (39, 25417024), (46, 21549216), (48, 20651332), (52, 19062768), (62, 15988128), (64, 15488499), (69, 14366144), (78, 12708512), (92, 10774608), (93, 10658752), (96, 10325666), (104, 9531384), (124, 7994064), (138, 7183072), (156, 6354256), (184, 5387304), (186, 5329376), (192, 5162833), (208, 4765692), (248, 3997032), (276, 3591536), (299, 3315264), (312, 3177128), (368, 2693652), (372, 2664688), (403, 2459712), (416, 2382846), (496, 1998516), (552, 1795768), (557, 1779648), (598, 1657632), (624, 1588564), (713, 1390272), (736, 1346826), (744, 1332344), (806, 1229856), (832, 1191423), (897, 1105088), (992, 999258), (1104, 897884), (1114, 889824), (1196, 828816), (1209, 819904), (1248, 794282), (1426, 695136), (1472, 673413), (1488, 666172), (1612, 614928), (1671, 593216), (1794, 552544), (1984, 499629), (2139, 463424), (2208, 448942), (2228, 444912), (2392, 414408), (2418, 409952), (2496, 397141), (2852, 347568), (2976, 333086), (3224, 307464), (3342, 296608), (3588, 276272), (4278, 231712), (4416, 224471), (4456, 222456), (4784, 207204), (4836, 204976), (5704, 173784), (5952, 166543), (6448, 153732), (6684, 148304), (7176, 138136), (7241, 136896), (8556, 115856), (8912, 111228), (9269, 106944), (9568, 103602), (9672, 102488), (11408, 86892), (12811, 77376), (12896, 76866), (13368, 74152), (14352, 69068), (14482, 68448), (17112, 57928), (17267, 57408), (17824, 55614), (18538, 53472), (19136, 51801), (19344, 51244), (21723, 45632), (22816, 43446), (25622, 38688), (25792, 38433), (26736, 37076), (27807, 35648), (28704, 34534), (28964, 34224)]