1278450688

素因数分解:

$2^{10}\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 88

約数和(自身を含む): 2636765264

約数和(自身を除く): 1358314576

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 97, 122, 128, 194, 211, 244, 256, 388, 422, 488, 512, 776, 844, 976, 1024, 1552, 1688, 1952, 3104, 3376, 3904, 5917, 6208, 6752, 7808, 11834, 12416, 12871, 13504, 15616, 20467, 23668, 24832, 25742, 27008, 31232, 40934, 47336, 49664, 51484, 54016, 62464, 81868, 94672, 99328, 102968, 108032, 163736, 189344, 205936, 216064, 327472, 378688, 411872, 654944, 757376, 823744, 1248487, 1309888, 1514752, 1647488, 2496974, 2619776, 3029504, 3294976, 4993948, 5239552, 6059008, 6589952, 9987896, 10479104, 13179904, 19975792, 20958208, 39951584, 79903168, 159806336, 319612672, 639225344, 1278450688]

約数ペア:

[(1, 1278450688), (2, 639225344), (4, 319612672), (8, 159806336), (16, 79903168), (32, 39951584), (61, 20958208), (64, 19975792), (97, 13179904), (122, 10479104), (128, 9987896), (194, 6589952), (211, 6059008), (244, 5239552), (256, 4993948), (388, 3294976), (422, 3029504), (488, 2619776), (512, 2496974), (776, 1647488), (844, 1514752), (976, 1309888), (1024, 1248487), (1552, 823744), (1688, 757376), (1952, 654944), (3104, 411872), (3376, 378688), (3904, 327472), (5917, 216064), (6208, 205936), (6752, 189344), (7808, 163736), (11834, 108032), (12416, 102968), (12871, 99328), (13504, 94672), (15616, 81868), (20467, 62464), (23668, 54016), (24832, 51484), (25742, 49664), (27008, 47336), (31232, 40934)]