991884816

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:478

約数の個数: 240

約数和(自身を含む): 3195628800

約数和(自身を除く): 2203743984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 36, 38, 39, 48, 52, 57, 72, 76, 78, 79, 104, 114, 117, 144, 152, 156, 158, 171, 208, 228, 234, 237, 247, 304, 312, 316, 342, 353, 456, 468, 474, 494, 624, 632, 684, 706, 711, 741, 912, 936, 948, 988, 1027, 1059, 1264, 1368, 1412, 1422, 1482, 1501, 1872, 1896, 1976, 2054, 2118, 2223, 2736, 2824, 2844, 2964, 3002, 3081, 3177, 3792, 3952, 4108, 4236, 4446, 4503, 4589, 5648, 5688, 5928, 6004, 6162, 6354, 6707, 8216, 8472, 8892, 9006, 9178, 9243, 11376, 11856, 12008, 12324, 12708, 13414, 13509, 13767, 16432, 16944, 17784, 18012, 18356, 18486, 19513, 20121, 24016, 24648, 25416, 26828, 27018, 27534, 27887, 35568, 36024, 36712, 36972, 39026, 40242, 41301, 49296, 50832, 53656, 54036, 55068, 55774, 58539, 60363, 72048, 73424, 73944, 78052, 80484, 82602, 83661, 87191, 107312, 108072, 110136, 111548, 117078, 120726, 147888, 156104, 160968, 165204, 167322, 174382, 175617, 216144, 220272, 223096, 234156, 241452, 250983, 261573, 312208, 321936, 330408, 334644, 348764, 351234, 362531, 446192, 468312, 482904, 501966, 523146, 529853, 660816, 669288, 697528, 702468, 725062, 784719, 936624, 965808, 1003932, 1046292, 1059706, 1087593, 1338576, 1395056, 1404936, 1450124, 1569438, 1589559, 2007864, 2092584, 2119412, 2175186, 2809872, 2900248, 3138876, 3179118, 3262779, 4015728, 4185168, 4238824, 4350372, 4768677, 5800496, 6277752, 6358236, 6525558, 6888089, 8477648, 8700744, 9537354, 12555504, 12716472, 13051116, 13776178, 17401488, 19074708, 20664267, 25432944, 26102232, 27552356, 38149416, 41328534, 52204464, 55104712, 61992801, 76298832, 82657068, 110209424, 123985602, 165314136, 247971204, 330628272, 495942408, 991884816]

約数ペア:

[(1, 991884816), (2, 495942408), (3, 330628272), (4, 247971204), (6, 165314136), (8, 123985602), (9, 110209424), (12, 82657068), (13, 76298832), (16, 61992801), (18, 55104712), (19, 52204464), (24, 41328534), (26, 38149416), (36, 27552356), (38, 26102232), (39, 25432944), (48, 20664267), (52, 19074708), (57, 17401488), (72, 13776178), (76, 13051116), (78, 12716472), (79, 12555504), (104, 9537354), (114, 8700744), (117, 8477648), (144, 6888089), (152, 6525558), (156, 6358236), (158, 6277752), (171, 5800496), (208, 4768677), (228, 4350372), (234, 4238824), (237, 4185168), (247, 4015728), (304, 3262779), (312, 3179118), (316, 3138876), (342, 2900248), (353, 2809872), (456, 2175186), (468, 2119412), (474, 2092584), (494, 2007864), (624, 1589559), (632, 1569438), (684, 1450124), (706, 1404936), (711, 1395056), (741, 1338576), (912, 1087593), (936, 1059706), (948, 1046292), (988, 1003932), (1027, 965808), (1059, 936624), (1264, 784719), (1368, 725062), (1412, 702468), (1422, 697528), (1482, 669288), (1501, 660816), (1872, 529853), (1896, 523146), (1976, 501966), (2054, 482904), (2118, 468312), (2223, 446192), (2736, 362531), (2824, 351234), (2844, 348764), (2964, 334644), (3002, 330408), (3081, 321936), (3177, 312208), (3792, 261573), (3952, 250983), (4108, 241452), (4236, 234156), (4446, 223096), (4503, 220272), (4589, 216144), (5648, 175617), (5688, 174382), (5928, 167322), (6004, 165204), (6162, 160968), (6354, 156104), (6707, 147888), (8216, 120726), (8472, 117078), (8892, 111548), (9006, 110136), (9178, 108072), (9243, 107312), (11376, 87191), (11856, 83661), (12008, 82602), (12324, 80484), (12708, 78052), (13414, 73944), (13509, 73424), (13767, 72048), (16432, 60363), (16944, 58539), (17784, 55774), (18012, 55068), (18356, 54036), (18486, 53656), (19513, 50832), (20121, 49296), (24016, 41301), (24648, 40242), (25416, 39026), (26828, 36972), (27018, 36712), (27534, 36024), (27887, 35568)]