720644912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:670

約数の個数: 80

約数和(自身を含む): 1550213280

約数和(自身を除く): 829568368

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 197, 208, 344, 394, 409, 559, 688, 788, 818, 1118, 1576, 1636, 2236, 2561, 3152, 3272, 4472, 5122, 5317, 6544, 8471, 8944, 10244, 10634, 16942, 17587, 20488, 21268, 33884, 35174, 40976, 42536, 67768, 70348, 80573, 85072, 110123, 135536, 140696, 161146, 220246, 228631, 281392, 322292, 440492, 457262, 644584, 880984, 914524, 1047449, 1289168, 1761968, 1829048, 2094898, 3464639, 3658096, 4189796, 6929278, 8379592, 13858556, 16759184, 27717112, 45040307, 55434224, 90080614, 180161228, 360322456, 720644912]

約数ペア:

[(1, 720644912), (2, 360322456), (4, 180161228), (8, 90080614), (13, 55434224), (16, 45040307), (26, 27717112), (43, 16759184), (52, 13858556), (86, 8379592), (104, 6929278), (172, 4189796), (197, 3658096), (208, 3464639), (344, 2094898), (394, 1829048), (409, 1761968), (559, 1289168), (688, 1047449), (788, 914524), (818, 880984), (1118, 644584), (1576, 457262), (1636, 440492), (2236, 322292), (2561, 281392), (3152, 228631), (3272, 220246), (4472, 161146), (5122, 140696), (5317, 135536), (6544, 110123), (8471, 85072), (8944, 80573), (10244, 70348), (10634, 67768), (16942, 42536), (17587, 40976), (20488, 35174), (21268, 33884)]