256663008

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7489}}^1$

素因数の和:7529

約数の個数: 144

約数和(自身を含む): 883340640

約数和(自身を除く): 626677632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 96, 102, 112, 119, 126, 136, 144, 153, 168, 204, 224, 238, 252, 272, 288, 306, 336, 357, 408, 476, 504, 544, 612, 672, 714, 816, 952, 1008, 1071, 1224, 1428, 1632, 1904, 2016, 2142, 2448, 2856, 3808, 4284, 4896, 5712, 7489, 8568, 11424, 14978, 17136, 22467, 29956, 34272, 44934, 52423, 59912, 67401, 89868, 104846, 119824, 127313, 134802, 157269, 179736, 209692, 239648, 254626, 269604, 314538, 359472, 381939, 419384, 471807, 509252, 539208, 629076, 718944, 763878, 838768, 891191, 943614, 1018504, 1078416, 1145817, 1258152, 1527756, 1677536, 1782382, 1887228, 2037008, 2156832, 2291634, 2516304, 2673573, 3055512, 3564764, 3774456, 4074016, 4583268, 5032608, 5347146, 6111024, 7129528, 7548912, 8020719, 9166536, 10694292, 12222048, 14259056, 15097824, 16041438, 18333072, 21388584, 28518112, 32082876, 36666144, 42777168, 64165752, 85554336, 128331504, 256663008]

約数ペア:

[(1, 256663008), (2, 128331504), (3, 85554336), (4, 64165752), (6, 42777168), (7, 36666144), (8, 32082876), (9, 28518112), (12, 21388584), (14, 18333072), (16, 16041438), (17, 15097824), (18, 14259056), (21, 12222048), (24, 10694292), (28, 9166536), (32, 8020719), (34, 7548912), (36, 7129528), (42, 6111024), (48, 5347146), (51, 5032608), (56, 4583268), (63, 4074016), (68, 3774456), (72, 3564764), (84, 3055512), (96, 2673573), (102, 2516304), (112, 2291634), (119, 2156832), (126, 2037008), (136, 1887228), (144, 1782382), (153, 1677536), (168, 1527756), (204, 1258152), (224, 1145817), (238, 1078416), (252, 1018504), (272, 943614), (288, 891191), (306, 838768), (336, 763878), (357, 718944), (408, 629076), (476, 539208), (504, 509252), (544, 471807), (612, 419384), (672, 381939), (714, 359472), (816, 314538), (952, 269604), (1008, 254626), (1071, 239648), (1224, 209692), (1428, 179736), (1632, 157269), (1904, 134802), (2016, 127313), (2142, 119824), (2448, 104846), (2856, 89868), (3808, 67401), (4284, 59912), (4896, 52423), (5712, 44934), (7489, 34272), (8568, 29956), (11424, 22467), (14978, 17136)]