394701920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:245

約数の個数: 144

約数和(自身を含む): 1026968544

約数和(自身を除く): 632266624

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 151, 155, 160, 170, 248, 272, 302, 310, 340, 496, 527, 544, 604, 620, 680, 755, 961, 992, 1054, 1208, 1240, 1360, 1510, 1922, 2108, 2416, 2480, 2567, 2635, 2720, 3020, 3844, 4216, 4681, 4805, 4832, 4960, 5134, 5270, 6040, 7688, 8432, 9362, 9610, 10268, 10540, 12080, 12835, 15376, 16337, 16864, 18724, 19220, 20536, 21080, 23405, 24160, 25670, 30752, 32674, 37448, 38440, 41072, 42160, 46810, 51340, 65348, 74896, 76880, 79577, 81685, 82144, 84320, 93620, 102680, 130696, 145111, 149792, 153760, 159154, 163370, 187240, 205360, 261392, 290222, 318308, 326740, 374480, 397885, 410720, 522784, 580444, 636616, 653480, 725555, 748960, 795770, 1160888, 1273232, 1306960, 1451110, 1591540, 2321776, 2466887, 2546464, 2613920, 2902220, 3183080, 4643552, 4933774, 5804440, 6366160, 9867548, 11608880, 12334435, 12732320, 19735096, 23217760, 24668870, 39470192, 49337740, 78940384, 98675480, 197350960, 394701920]

約数ペア:

[(1, 394701920), (2, 197350960), (4, 98675480), (5, 78940384), (8, 49337740), (10, 39470192), (16, 24668870), (17, 23217760), (20, 19735096), (31, 12732320), (32, 12334435), (34, 11608880), (40, 9867548), (62, 6366160), (68, 5804440), (80, 4933774), (85, 4643552), (124, 3183080), (136, 2902220), (151, 2613920), (155, 2546464), (160, 2466887), (170, 2321776), (248, 1591540), (272, 1451110), (302, 1306960), (310, 1273232), (340, 1160888), (496, 795770), (527, 748960), (544, 725555), (604, 653480), (620, 636616), (680, 580444), (755, 522784), (961, 410720), (992, 397885), (1054, 374480), (1208, 326740), (1240, 318308), (1360, 290222), (1510, 261392), (1922, 205360), (2108, 187240), (2416, 163370), (2480, 159154), (2567, 153760), (2635, 149792), (2720, 145111), (3020, 130696), (3844, 102680), (4216, 93620), (4681, 84320), (4805, 82144), (4832, 81685), (4960, 79577), (5134, 76880), (5270, 74896), (6040, 65348), (7688, 51340), (8432, 46810), (9362, 42160), (9610, 41072), (10268, 38440), (10540, 37448), (12080, 32674), (12835, 30752), (15376, 25670), (16337, 24160), (16864, 23405), (18724, 21080), (19220, 20536)]