66468920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{857}}^1$

素因数の和:1152

約数の個数: 64

約数和(自身を含む): 171737280

約数和(自身を除く): 105268360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 277, 280, 554, 857, 1108, 1385, 1714, 1939, 2216, 2770, 3428, 3878, 4285, 5540, 5999, 6856, 7756, 8570, 9695, 11080, 11998, 15512, 17140, 19390, 23996, 29995, 34280, 38780, 47992, 59990, 77560, 119980, 237389, 239960, 474778, 949556, 1186945, 1661723, 1899112, 2373890, 3323446, 4747780, 6646892, 8308615, 9495560, 13293784, 16617230, 33234460, 66468920]

約数ペア:

[(1, 66468920), (2, 33234460), (4, 16617230), (5, 13293784), (7, 9495560), (8, 8308615), (10, 6646892), (14, 4747780), (20, 3323446), (28, 2373890), (35, 1899112), (40, 1661723), (56, 1186945), (70, 949556), (140, 474778), (277, 239960), (280, 237389), (554, 119980), (857, 77560), (1108, 59990), (1385, 47992), (1714, 38780), (1939, 34280), (2216, 29995), (2770, 23996), (3428, 19390), (3878, 17140), (4285, 15512), (5540, 11998), (5999, 11080), (6856, 9695), (7756, 8570)]