287492480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:548

約数の個数: 128

約数和(自身を含む): 759296160

約数和(自身を除く): 471803680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 97, 110, 128, 160, 176, 194, 220, 320, 352, 388, 421, 440, 485, 640, 704, 776, 842, 880, 970, 1067, 1408, 1552, 1684, 1760, 1940, 2105, 2134, 3104, 3368, 3520, 3880, 4210, 4268, 4631, 5335, 6208, 6736, 7040, 7760, 8420, 8536, 9262, 10670, 12416, 13472, 15520, 16840, 17072, 18524, 21340, 23155, 26944, 31040, 33680, 34144, 37048, 40837, 42680, 46310, 53888, 62080, 67360, 68288, 74096, 81674, 85360, 92620, 134720, 136576, 148192, 163348, 170720, 185240, 204185, 269440, 296384, 326696, 341440, 370480, 408370, 449207, 592768, 653392, 682880, 740960, 816740, 898414, 1306784, 1481920, 1633480, 1796828, 2246035, 2613568, 2963840, 3266960, 3593656, 4492070, 5227136, 6533920, 7187312, 8984140, 13067840, 14374624, 17968280, 26135680, 28749248, 35936560, 57498496, 71873120, 143746240, 287492480]

約数ペア:

[(1, 287492480), (2, 143746240), (4, 71873120), (5, 57498496), (8, 35936560), (10, 28749248), (11, 26135680), (16, 17968280), (20, 14374624), (22, 13067840), (32, 8984140), (40, 7187312), (44, 6533920), (55, 5227136), (64, 4492070), (80, 3593656), (88, 3266960), (97, 2963840), (110, 2613568), (128, 2246035), (160, 1796828), (176, 1633480), (194, 1481920), (220, 1306784), (320, 898414), (352, 816740), (388, 740960), (421, 682880), (440, 653392), (485, 592768), (640, 449207), (704, 408370), (776, 370480), (842, 341440), (880, 326696), (970, 296384), (1067, 269440), (1408, 204185), (1552, 185240), (1684, 170720), (1760, 163348), (1940, 148192), (2105, 136576), (2134, 134720), (3104, 92620), (3368, 85360), (3520, 81674), (3880, 74096), (4210, 68288), (4268, 67360), (4631, 62080), (5335, 53888), (6208, 46310), (6736, 42680), (7040, 40837), (7760, 37048), (8420, 34144), (8536, 33680), (9262, 31040), (10670, 26944), (12416, 23155), (13472, 21340), (15520, 18524), (16840, 17072)]