81507712

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 196549920

約数和(自身を除く): 115042208

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 61, 64, 73, 88, 104, 122, 128, 143, 146, 176, 208, 244, 286, 292, 352, 416, 488, 572, 584, 671, 704, 793, 803, 832, 949, 976, 1144, 1168, 1342, 1408, 1586, 1606, 1664, 1898, 1952, 2288, 2336, 2684, 3172, 3212, 3796, 3904, 4453, 4576, 4672, 5368, 6344, 6424, 7592, 7808, 8723, 8906, 9152, 9344, 10439, 10736, 12688, 12848, 15184, 17446, 17812, 18304, 20878, 21472, 25376, 25696, 30368, 34892, 35624, 41756, 42944, 48983, 50752, 51392, 57889, 60736, 69784, 71248, 83512, 85888, 97966, 101504, 102784, 115778, 121472, 139568, 142496, 167024, 195932, 231556, 279136, 284992, 334048, 391864, 463112, 558272, 569984, 636779, 668096, 783728, 926224, 1116544, 1273558, 1336192, 1567456, 1852448, 2547116, 3134912, 3704896, 5094232, 6269824, 7409792, 10188464, 20376928, 40753856, 81507712]

約数ペア:

[(1, 81507712), (2, 40753856), (4, 20376928), (8, 10188464), (11, 7409792), (13, 6269824), (16, 5094232), (22, 3704896), (26, 3134912), (32, 2547116), (44, 1852448), (52, 1567456), (61, 1336192), (64, 1273558), (73, 1116544), (88, 926224), (104, 783728), (122, 668096), (128, 636779), (143, 569984), (146, 558272), (176, 463112), (208, 391864), (244, 334048), (286, 284992), (292, 279136), (352, 231556), (416, 195932), (488, 167024), (572, 142496), (584, 139568), (671, 121472), (704, 115778), (793, 102784), (803, 101504), (832, 97966), (949, 85888), (976, 83512), (1144, 71248), (1168, 69784), (1342, 60736), (1408, 57889), (1586, 51392), (1606, 50752), (1664, 48983), (1898, 42944), (1952, 41756), (2288, 35624), (2336, 34892), (2684, 30368), (3172, 25696), (3212, 25376), (3796, 21472), (3904, 20878), (4453, 18304), (4576, 17812), (4672, 17446), (5368, 15184), (6344, 12848), (6424, 12688), (7592, 10736), (7808, 10439), (8723, 9344), (8906, 9152)]