80747760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{661}}^1$

素因数の和:1186

約数の個数: 80

約数和(自身を含む): 251189280

約数和(自身を除く): 170441520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 509, 661, 1018, 1322, 1527, 1983, 2036, 2545, 2644, 3054, 3305, 3966, 4072, 5090, 5288, 6108, 6610, 7635, 7932, 8144, 9915, 10180, 10576, 12216, 13220, 15270, 15864, 19830, 20360, 24432, 26440, 30540, 31728, 39660, 40720, 52880, 61080, 79320, 122160, 158640, 336449, 672898, 1009347, 1345796, 1682245, 2018694, 2691592, 3364490, 4037388, 5046735, 5383184, 6728980, 8074776, 10093470, 13457960, 16149552, 20186940, 26915920, 40373880, 80747760]

約数ペア:

[(1, 80747760), (2, 40373880), (3, 26915920), (4, 20186940), (5, 16149552), (6, 13457960), (8, 10093470), (10, 8074776), (12, 6728980), (15, 5383184), (16, 5046735), (20, 4037388), (24, 3364490), (30, 2691592), (40, 2018694), (48, 1682245), (60, 1345796), (80, 1009347), (120, 672898), (240, 336449), (509, 158640), (661, 122160), (1018, 79320), (1322, 61080), (1527, 52880), (1983, 40720), (2036, 39660), (2545, 31728), (2644, 30540), (3054, 26440), (3305, 24432), (3966, 20360), (4072, 19830), (5090, 15864), (5288, 15270), (6108, 13220), (6610, 12216), (7635, 10576), (7932, 10180), (8144, 9915)]