78940384

素因数分解:

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

素因数の和:240

約数の個数: 72

約数和(自身を含む): 171161424

約数和(自身を除く): 92221040

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 124, 136, 151, 248, 272, 302, 496, 527, 544, 604, 961, 992, 1054, 1208, 1922, 2108, 2416, 2567, 3844, 4216, 4681, 4832, 5134, 7688, 8432, 9362, 10268, 15376, 16337, 16864, 18724, 20536, 30752, 32674, 37448, 41072, 65348, 74896, 79577, 82144, 130696, 145111, 149792, 159154, 261392, 290222, 318308, 522784, 580444, 636616, 1160888, 1273232, 2321776, 2466887, 2546464, 4643552, 4933774, 9867548, 19735096, 39470192, 78940384]

約数ペア:

[(1, 78940384), (2, 39470192), (4, 19735096), (8, 9867548), (16, 4933774), (17, 4643552), (31, 2546464), (32, 2466887), (34, 2321776), (62, 1273232), (68, 1160888), (124, 636616), (136, 580444), (151, 522784), (248, 318308), (272, 290222), (302, 261392), (496, 159154), (527, 149792), (544, 145111), (604, 130696), (961, 82144), (992, 79577), (1054, 74896), (1208, 65348), (1922, 41072), (2108, 37448), (2416, 32674), (2567, 30752), (3844, 20536), (4216, 18724), (4681, 16864), (4832, 16337), (5134, 15376), (7688, 10268), (8432, 9362)]