780481996

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{281}}^1\times {\mathrm{383}}^1$

素因数の和:719

約数の個数: 72

約数和(自身を含む): 1641862656

約数和(自身を除く): 861380660

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 281, 383, 518, 562, 766, 1036, 1124, 1532, 1813, 1967, 2681, 3626, 3934, 5362, 7252, 7868, 10397, 10724, 13769, 14171, 18767, 20794, 27538, 28342, 37534, 41588, 55076, 56684, 72779, 75068, 99197, 107623, 145558, 198394, 215246, 291116, 396788, 430492, 509453, 694379, 753361, 1018906, 1388758, 1506722, 2037812, 2777516, 3013444, 3982051, 5273527, 7964102, 10547054, 15928204, 21094108, 27874357, 55748714, 111497428, 195120499, 390240998, 780481996]

約数ペア:

[(1, 780481996), (2, 390240998), (4, 195120499), (7, 111497428), (14, 55748714), (28, 27874357), (37, 21094108), (49, 15928204), (74, 10547054), (98, 7964102), (148, 5273527), (196, 3982051), (259, 3013444), (281, 2777516), (383, 2037812), (518, 1506722), (562, 1388758), (766, 1018906), (1036, 753361), (1124, 694379), (1532, 509453), (1813, 430492), (1967, 396788), (2681, 291116), (3626, 215246), (3934, 198394), (5362, 145558), (7252, 107623), (7868, 99197), (10397, 75068), (10724, 72779), (13769, 56684), (14171, 55076), (18767, 41588), (20794, 37534), (27538, 28342)]