257527360

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:324

約数の個数: 112

約数和(自身を含む): 634959360

約数和(自身を除く): 377432000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 79, 80, 122, 158, 160, 167, 244, 305, 316, 320, 334, 395, 488, 610, 632, 668, 790, 835, 976, 1220, 1264, 1336, 1580, 1670, 1952, 2440, 2528, 2672, 3160, 3340, 3904, 4819, 4880, 5056, 5344, 6320, 6680, 9638, 9760, 10187, 10688, 12640, 13193, 13360, 19276, 19520, 20374, 24095, 25280, 26386, 26720, 38552, 40748, 48190, 50935, 52772, 53440, 65965, 77104, 81496, 96380, 101870, 105544, 131930, 154208, 162992, 192760, 203740, 211088, 263860, 308416, 325984, 385520, 407480, 422176, 527720, 651968, 771040, 804773, 814960, 844352, 1055440, 1542080, 1609546, 1629920, 2110880, 3219092, 3259840, 4023865, 4221760, 6438184, 8047730, 12876368, 16095460, 25752736, 32190920, 51505472, 64381840, 128763680, 257527360]

約数ペア:

[(1, 257527360), (2, 128763680), (4, 64381840), (5, 51505472), (8, 32190920), (10, 25752736), (16, 16095460), (20, 12876368), (32, 8047730), (40, 6438184), (61, 4221760), (64, 4023865), (79, 3259840), (80, 3219092), (122, 2110880), (158, 1629920), (160, 1609546), (167, 1542080), (244, 1055440), (305, 844352), (316, 814960), (320, 804773), (334, 771040), (395, 651968), (488, 527720), (610, 422176), (632, 407480), (668, 385520), (790, 325984), (835, 308416), (976, 263860), (1220, 211088), (1264, 203740), (1336, 192760), (1580, 162992), (1670, 154208), (1952, 131930), (2440, 105544), (2528, 101870), (2672, 96380), (3160, 81496), (3340, 77104), (3904, 65965), (4819, 53440), (4880, 52772), (5056, 50935), (5344, 48190), (6320, 40748), (6680, 38552), (9638, 26720), (9760, 26386), (10187, 25280), (10688, 24095), (12640, 20374), (13193, 19520), (13360, 19276)]