20371712

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 44739072

約数和(自身を除く): 24367360

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 151, 248, 256, 272, 302, 496, 527, 544, 604, 992, 1054, 1088, 1208, 1984, 2108, 2176, 2416, 2567, 3968, 4216, 4352, 4681, 4832, 5134, 7936, 8432, 9362, 9664, 10268, 16864, 18724, 19328, 20536, 33728, 37448, 38656, 41072, 67456, 74896, 79577, 82144, 134912, 149792, 159154, 164288, 299584, 318308, 328576, 599168, 636616, 657152, 1198336, 1273232, 2546464, 5092928, 10185856, 20371712]

約数ペア:

[(1, 20371712), (2, 10185856), (4, 5092928), (8, 2546464), (16, 1273232), (17, 1198336), (31, 657152), (32, 636616), (34, 599168), (62, 328576), (64, 318308), (68, 299584), (124, 164288), (128, 159154), (136, 149792), (151, 134912), (248, 82144), (256, 79577), (272, 74896), (302, 67456), (496, 41072), (527, 38656), (544, 37448), (604, 33728), (992, 20536), (1054, 19328), (1088, 18724), (1208, 16864), (1984, 10268), (2108, 9664), (2176, 9362), (2416, 8432), (2567, 7936), (3968, 5134), (4216, 4832), (4352, 4681)]