16655660

素因数分解:

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

素因数の和:726

約数の個数: 48

約数和(自身を含む): 40212480

約数和(自身を除く): 23556820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 439, 542, 878, 1084, 1355, 1756, 1897, 2195, 2710, 3073, 3794, 4390, 5420, 6146, 7588, 8780, 9485, 12292, 15365, 18970, 30730, 37940, 61460, 118969, 237938, 475876, 594845, 832783, 1189690, 1665566, 2379380, 3331132, 4163915, 8327830, 16655660]

約数ペア:

[(1, 16655660), (2, 8327830), (4, 4163915), (5, 3331132), (7, 2379380), (10, 1665566), (14, 1189690), (20, 832783), (28, 594845), (35, 475876), (70, 237938), (140, 118969), (271, 61460), (439, 37940), (542, 30730), (878, 18970), (1084, 15365), (1355, 12292), (1756, 9485), (1897, 8780), (2195, 7588), (2710, 6146), (3073, 5420), (3794, 4390)]