256387560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:328

約数の個数: 256

約数和(自身を含む): 921231360

約数和(自身を除く): 664843800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 67, 78, 88, 104, 110, 120, 130, 132, 134, 143, 156, 165, 195, 201, 220, 223, 260, 264, 268, 286, 312, 330, 335, 390, 402, 429, 440, 446, 520, 536, 572, 660, 669, 670, 715, 737, 780, 804, 858, 871, 892, 1005, 1115, 1144, 1320, 1338, 1340, 1430, 1474, 1560, 1608, 1716, 1742, 1784, 2010, 2145, 2211, 2230, 2453, 2613, 2676, 2680, 2860, 2899, 2948, 3345, 3432, 3484, 3685, 4020, 4290, 4355, 4422, 4460, 4906, 5226, 5352, 5720, 5798, 5896, 6690, 6968, 7359, 7370, 8040, 8580, 8697, 8710, 8844, 8920, 9581, 9812, 10452, 11055, 11596, 12265, 13065, 13380, 14495, 14718, 14740, 14941, 17160, 17394, 17420, 17688, 19162, 19624, 20904, 22110, 23192, 24530, 26130, 26760, 28743, 28990, 29436, 29480, 29882, 31889, 34788, 34840, 36795, 38324, 43485, 44220, 44823, 47905, 49060, 52260, 57486, 57980, 58872, 59764, 63778, 69576, 73590, 74705, 76648, 86970, 88440, 89646, 95667, 95810, 98120, 104520, 114972, 115960, 119528, 127556, 143715, 147180, 149410, 159445, 164351, 173940, 179292, 191334, 191620, 194233, 224115, 229944, 255112, 287430, 294360, 298820, 318890, 328702, 347880, 358584, 382668, 383240, 388466, 448230, 478335, 493053, 574860, 582699, 597640, 637780, 657404, 765336, 776932, 821755, 896460, 956670, 971165, 986106, 1149720, 1165398, 1275560, 1314808, 1553864, 1643510, 1792920, 1913340, 1942330, 1972212, 2136563, 2330796, 2465265, 2913495, 3287020, 3826680, 3884660, 3944424, 4273126, 4661592, 4930530, 5826990, 6409689, 6574040, 7769320, 8546252, 9861060, 10682815, 11653980, 12819378, 17092504, 19722120, 21365630, 23307960, 25638756, 32048445, 42731260, 51277512, 64096890, 85462520, 128193780, 256387560]

約数ペア:

[(1, 256387560), (2, 128193780), (3, 85462520), (4, 64096890), (5, 51277512), (6, 42731260), (8, 32048445), (10, 25638756), (11, 23307960), (12, 21365630), (13, 19722120), (15, 17092504), (20, 12819378), (22, 11653980), (24, 10682815), (26, 9861060), (30, 8546252), (33, 7769320), (39, 6574040), (40, 6409689), (44, 5826990), (52, 4930530), (55, 4661592), (60, 4273126), (65, 3944424), (66, 3884660), (67, 3826680), (78, 3287020), (88, 2913495), (104, 2465265), (110, 2330796), (120, 2136563), (130, 1972212), (132, 1942330), (134, 1913340), (143, 1792920), (156, 1643510), (165, 1553864), (195, 1314808), (201, 1275560), (220, 1165398), (223, 1149720), (260, 986106), (264, 971165), (268, 956670), (286, 896460), (312, 821755), (330, 776932), (335, 765336), (390, 657404), (402, 637780), (429, 597640), (440, 582699), (446, 574860), (520, 493053), (536, 478335), (572, 448230), (660, 388466), (669, 383240), (670, 382668), (715, 358584), (737, 347880), (780, 328702), (804, 318890), (858, 298820), (871, 294360), (892, 287430), (1005, 255112), (1115, 229944), (1144, 224115), (1320, 194233), (1338, 191620), (1340, 191334), (1430, 179292), (1474, 173940), (1560, 164351), (1608, 159445), (1716, 149410), (1742, 147180), (1784, 143715), (2010, 127556), (2145, 119528), (2211, 115960), (2230, 114972), (2453, 104520), (2613, 98120), (2676, 95810), (2680, 95667), (2860, 89646), (2899, 88440), (2948, 86970), (3345, 76648), (3432, 74705), (3484, 73590), (3685, 69576), (4020, 63778), (4290, 59764), (4355, 58872), (4422, 57980), (4460, 57486), (4906, 52260), (5226, 49060), (5352, 47905), (5720, 44823), (5798, 44220), (5896, 43485), (6690, 38324), (6968, 36795), (7359, 34840), (7370, 34788), (8040, 31889), (8580, 29882), (8697, 29480), (8710, 29436), (8844, 28990), (8920, 28743), (9581, 26760), (9812, 26130), (10452, 24530), (11055, 23192), (11596, 22110), (12265, 20904), (13065, 19624), (13380, 19162), (14495, 17688), (14718, 17420), (14740, 17394), (14941, 17160)]