64820980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2399}}^1$

素因数の和:2608

約数の個数: 48

約数和(自身を含む): 156441600

約数和(自身を除く): 91620620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1351, 1930, 2399, 2702, 3860, 4798, 5404, 6755, 9596, 11995, 13510, 16793, 23990, 27020, 33586, 47980, 67172, 83965, 167930, 335860, 463007, 926014, 1852028, 2315035, 3241049, 4630070, 6482098, 9260140, 12964196, 16205245, 32410490, 64820980]

約数ペア:

[(1, 64820980), (2, 32410490), (4, 16205245), (5, 12964196), (7, 9260140), (10, 6482098), (14, 4630070), (20, 3241049), (28, 2315035), (35, 1852028), (70, 926014), (140, 463007), (193, 335860), (386, 167930), (772, 83965), (965, 67172), (1351, 47980), (1930, 33586), (2399, 27020), (2702, 23990), (3860, 16793), (4798, 13510), (5404, 11995), (6755, 9596)]