257458488

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:429

約数の個数: 128

約数和(自身を含む): 757900800

約数和(自身を除く): 500442312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 67, 84, 89, 134, 168, 178, 201, 257, 267, 268, 356, 402, 469, 514, 534, 536, 623, 712, 771, 804, 938, 1028, 1068, 1246, 1407, 1542, 1608, 1799, 1869, 1876, 2056, 2136, 2492, 2814, 3084, 3598, 3738, 3752, 4984, 5397, 5628, 5963, 6168, 7196, 7476, 10794, 11256, 11926, 14392, 14952, 17219, 17889, 21588, 22873, 23852, 34438, 35778, 41741, 43176, 45746, 47704, 51657, 68619, 68876, 71556, 83482, 91492, 103314, 120533, 125223, 137238, 137752, 143112, 160111, 166964, 182984, 206628, 241066, 250446, 274476, 320222, 333928, 361599, 413256, 480333, 482132, 500892, 548952, 640444, 723198, 960666, 964264, 1001784, 1280888, 1446396, 1532491, 1921332, 2892792, 3064982, 3842664, 4597473, 6129964, 9194946, 10727437, 12259928, 18389892, 21454874, 32182311, 36779784, 42909748, 64364622, 85819496, 128729244, 257458488]

約数ペア:

[(1, 257458488), (2, 128729244), (3, 85819496), (4, 64364622), (6, 42909748), (7, 36779784), (8, 32182311), (12, 21454874), (14, 18389892), (21, 12259928), (24, 10727437), (28, 9194946), (42, 6129964), (56, 4597473), (67, 3842664), (84, 3064982), (89, 2892792), (134, 1921332), (168, 1532491), (178, 1446396), (201, 1280888), (257, 1001784), (267, 964264), (268, 960666), (356, 723198), (402, 640444), (469, 548952), (514, 500892), (534, 482132), (536, 480333), (623, 413256), (712, 361599), (771, 333928), (804, 320222), (938, 274476), (1028, 250446), (1068, 241066), (1246, 206628), (1407, 182984), (1542, 166964), (1608, 160111), (1799, 143112), (1869, 137752), (1876, 137238), (2056, 125223), (2136, 120533), (2492, 103314), (2814, 91492), (3084, 83482), (3598, 71556), (3738, 68876), (3752, 68619), (4984, 51657), (5397, 47704), (5628, 45746), (5963, 43176), (6168, 41741), (7196, 35778), (7476, 34438), (10794, 23852), (11256, 22873), (11926, 21588), (14392, 17889), (14952, 17219)]