66622640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{439}}^1$

素因数の和:730

約数の個数: 80

約数和(自身を含む): 178083840

約数和(自身を除く): 111461200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 271, 280, 439, 542, 560, 878, 1084, 1355, 1756, 1897, 2168, 2195, 2710, 3073, 3512, 3794, 4336, 4390, 5420, 6146, 7024, 7588, 8780, 9485, 10840, 12292, 15176, 15365, 17560, 18970, 21680, 24584, 30352, 30730, 35120, 37940, 49168, 61460, 75880, 118969, 122920, 151760, 237938, 245840, 475876, 594845, 832783, 951752, 1189690, 1665566, 1903504, 2379380, 3331132, 4163915, 4758760, 6662264, 8327830, 9517520, 13324528, 16655660, 33311320, 66622640]

約数ペア:

[(1, 66622640), (2, 33311320), (4, 16655660), (5, 13324528), (7, 9517520), (8, 8327830), (10, 6662264), (14, 4758760), (16, 4163915), (20, 3331132), (28, 2379380), (35, 1903504), (40, 1665566), (56, 1189690), (70, 951752), (80, 832783), (112, 594845), (140, 475876), (271, 245840), (280, 237938), (439, 151760), (542, 122920), (560, 118969), (878, 75880), (1084, 61460), (1355, 49168), (1756, 37940), (1897, 35120), (2168, 30730), (2195, 30352), (2710, 24584), (3073, 21680), (3512, 18970), (3794, 17560), (4336, 15365), (4390, 15176), (5420, 12292), (6146, 10840), (7024, 9485), (7588, 8780)]