78938880

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 257004384

約数和(自身を除く): 178065504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 183, 192, 240, 244, 256, 305, 320, 337, 366, 384, 480, 488, 610, 640, 674, 732, 768, 915, 960, 976, 1011, 1220, 1280, 1348, 1464, 1685, 1830, 1920, 1952, 2022, 2440, 2696, 2928, 3370, 3660, 3840, 3904, 4044, 4880, 5055, 5392, 5856, 6740, 7320, 7808, 8088, 9760, 10110, 10784, 11712, 13480, 14640, 15616, 16176, 19520, 20220, 20557, 21568, 23424, 26960, 29280, 32352, 39040, 40440, 41114, 43136, 46848, 53920, 58560, 61671, 64704, 78080, 80880, 82228, 86272, 102785, 107840, 117120, 123342, 129408, 161760, 164456, 205570, 215680, 234240, 246684, 258816, 308355, 323520, 328912, 411140, 431360, 493368, 616710, 647040, 657824, 822280, 986736, 1233420, 1294080, 1315648, 1644560, 1973472, 2466840, 2631296, 3289120, 3946944, 4933680, 5262592, 6578240, 7893888, 9867360, 13156480, 15787776, 19734720, 26312960, 39469440, 78938880]

約数ペア:

[(1, 78938880), (2, 39469440), (3, 26312960), (4, 19734720), (5, 15787776), (6, 13156480), (8, 9867360), (10, 7893888), (12, 6578240), (15, 5262592), (16, 4933680), (20, 3946944), (24, 3289120), (30, 2631296), (32, 2466840), (40, 1973472), (48, 1644560), (60, 1315648), (61, 1294080), (64, 1233420), (80, 986736), (96, 822280), (120, 657824), (122, 647040), (128, 616710), (160, 493368), (183, 431360), (192, 411140), (240, 328912), (244, 323520), (256, 308355), (305, 258816), (320, 246684), (337, 234240), (366, 215680), (384, 205570), (480, 164456), (488, 161760), (610, 129408), (640, 123342), (674, 117120), (732, 107840), (768, 102785), (915, 86272), (960, 82228), (976, 80880), (1011, 78080), (1220, 64704), (1280, 61671), (1348, 58560), (1464, 53920), (1685, 46848), (1830, 43136), (1920, 41114), (1952, 40440), (2022, 39040), (2440, 32352), (2696, 29280), (2928, 26960), (3370, 23424), (3660, 21568), (3840, 20557), (3904, 20220), (4044, 19520), (4880, 16176), (5055, 15616), (5392, 14640), (5856, 13480), (6740, 11712), (7320, 10784), (7808, 10110), (8088, 9760)]