66947860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{478199}}^1$

素因数の和:478215

約数の個数: 24

約数和(自身を含む): 160675200

約数和(自身を除く): 93727340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 478199, 956398, 1912796, 2390995, 3347393, 4781990, 6694786, 9563980, 13389572, 16736965, 33473930, 66947860]

約数ペア:

[(1, 66947860), (2, 33473930), (4, 16736965), (5, 13389572), (7, 9563980), (10, 6694786), (14, 4781990), (20, 3347393), (28, 2390995), (35, 1912796), (70, 956398), (140, 478199)]