520018960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1136

約数の個数: 80

約数和(自身を含む): 1266526080

約数和(自身を除く): 746507120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 409, 460, 691, 818, 920, 1382, 1636, 1840, 2045, 2764, 3272, 3455, 4090, 5528, 6544, 6910, 8180, 9407, 11056, 13820, 15893, 16360, 18814, 27640, 31786, 32720, 37628, 47035, 55280, 63572, 75256, 79465, 94070, 127144, 150512, 158930, 188140, 254288, 282619, 317860, 376280, 565238, 635720, 752560, 1130476, 1271440, 1413095, 2260952, 2826190, 4521904, 5652380, 6500237, 11304760, 13000474, 22609520, 26000948, 32501185, 52001896, 65002370, 104003792, 130004740, 260009480, 520018960]

約数ペア:

[(1, 520018960), (2, 260009480), (4, 130004740), (5, 104003792), (8, 65002370), (10, 52001896), (16, 32501185), (20, 26000948), (23, 22609520), (40, 13000474), (46, 11304760), (80, 6500237), (92, 5652380), (115, 4521904), (184, 2826190), (230, 2260952), (368, 1413095), (409, 1271440), (460, 1130476), (691, 752560), (818, 635720), (920, 565238), (1382, 376280), (1636, 317860), (1840, 282619), (2045, 254288), (2764, 188140), (3272, 158930), (3455, 150512), (4090, 127144), (5528, 94070), (6544, 79465), (6910, 75256), (8180, 63572), (9407, 55280), (11056, 47035), (13820, 37628), (15893, 32720), (16360, 31786), (18814, 27640)]