257298888

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:188

約数の個数: 256

約数和(自身を含む): 851005440

約数和(自身を除く): 593706552

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 37, 42, 44, 53, 56, 66, 71, 74, 77, 84, 88, 106, 111, 132, 142, 148, 154, 159, 168, 212, 213, 222, 231, 259, 264, 284, 296, 308, 318, 371, 407, 424, 426, 444, 462, 497, 518, 568, 583, 616, 636, 742, 777, 781, 814, 852, 888, 924, 994, 1036, 1113, 1166, 1221, 1272, 1484, 1491, 1554, 1562, 1628, 1704, 1749, 1848, 1961, 1988, 2072, 2226, 2332, 2343, 2442, 2627, 2849, 2968, 2982, 3108, 3124, 3256, 3498, 3763, 3922, 3976, 4081, 4452, 4664, 4686, 4884, 5254, 5467, 5698, 5883, 5964, 6216, 6248, 6996, 7526, 7844, 7881, 8162, 8547, 8904, 9372, 9768, 10508, 10934, 11289, 11396, 11766, 11928, 12243, 13727, 13992, 15052, 15688, 15762, 16324, 16401, 17094, 18389, 18744, 21016, 21571, 21868, 22578, 22792, 23532, 24486, 26341, 27454, 28897, 30104, 31524, 32648, 32802, 34188, 36778, 41181, 41393, 43142, 43736, 45156, 47064, 48972, 52682, 54908, 55167, 57794, 63048, 64713, 65604, 68376, 73556, 79023, 82362, 82786, 86284, 86691, 90312, 97944, 105364, 109816, 110334, 115588, 124179, 129426, 131208, 139231, 147112, 150997, 158046, 164724, 165572, 172568, 173382, 202279, 210728, 220668, 231176, 248358, 258852, 278462, 289751, 301994, 316092, 329448, 331144, 346764, 404558, 417693, 441336, 452991, 496716, 517704, 556924, 579502, 603988, 606837, 632184, 693528, 809116, 835386, 869253, 905982, 974617, 993432, 1113848, 1159004, 1207976, 1213674, 1531541, 1618232, 1670772, 1738506, 1811964, 1949234, 2318008, 2427348, 2923851, 3063082, 3341544, 3477012, 3623928, 3898468, 4594623, 4854696, 5847702, 6126164, 6954024, 7796936, 9189246, 10720787, 11695404, 12252328, 18378492, 21441574, 23390808, 32162361, 36756984, 42883148, 64324722, 85766296, 128649444, 257298888]

約数ペア:

[(1, 257298888), (2, 128649444), (3, 85766296), (4, 64324722), (6, 42883148), (7, 36756984), (8, 32162361), (11, 23390808), (12, 21441574), (14, 18378492), (21, 12252328), (22, 11695404), (24, 10720787), (28, 9189246), (33, 7796936), (37, 6954024), (42, 6126164), (44, 5847702), (53, 4854696), (56, 4594623), (66, 3898468), (71, 3623928), (74, 3477012), (77, 3341544), (84, 3063082), (88, 2923851), (106, 2427348), (111, 2318008), (132, 1949234), (142, 1811964), (148, 1738506), (154, 1670772), (159, 1618232), (168, 1531541), (212, 1213674), (213, 1207976), (222, 1159004), (231, 1113848), (259, 993432), (264, 974617), (284, 905982), (296, 869253), (308, 835386), (318, 809116), (371, 693528), (407, 632184), (424, 606837), (426, 603988), (444, 579502), (462, 556924), (497, 517704), (518, 496716), (568, 452991), (583, 441336), (616, 417693), (636, 404558), (742, 346764), (777, 331144), (781, 329448), (814, 316092), (852, 301994), (888, 289751), (924, 278462), (994, 258852), (1036, 248358), (1113, 231176), (1166, 220668), (1221, 210728), (1272, 202279), (1484, 173382), (1491, 172568), (1554, 165572), (1562, 164724), (1628, 158046), (1704, 150997), (1749, 147112), (1848, 139231), (1961, 131208), (1988, 129426), (2072, 124179), (2226, 115588), (2332, 110334), (2343, 109816), (2442, 105364), (2627, 97944), (2849, 90312), (2968, 86691), (2982, 86284), (3108, 82786), (3124, 82362), (3256, 79023), (3498, 73556), (3763, 68376), (3922, 65604), (3976, 64713), (4081, 63048), (4452, 57794), (4664, 55167), (4686, 54908), (4884, 52682), (5254, 48972), (5467, 47064), (5698, 45156), (5883, 43736), (5964, 43142), (6216, 41393), (6248, 41181), (6996, 36778), (7526, 34188), (7844, 32802), (7881, 32648), (8162, 31524), (8547, 30104), (8904, 28897), (9372, 27454), (9768, 26341), (10508, 24486), (10934, 23532), (11289, 22792), (11396, 22578), (11766, 21868), (11928, 21571), (12243, 21016), (13727, 18744), (13992, 18389), (15052, 17094), (15688, 16401), (15762, 16324)]