66557540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2389}}^1$

素因数の和:2604

約数の個数: 48

約数和(自身を含む): 160608000

約数和(自身を除く): 94050460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2389, 2786, 3980, 4778, 5572, 6965, 9556, 11945, 13930, 16723, 23890, 27860, 33446, 47780, 66892, 83615, 167230, 334460, 475411, 950822, 1901644, 2377055, 3327877, 4754110, 6655754, 9508220, 13311508, 16639385, 33278770, 66557540]

約数ペア:

[(1, 66557540), (2, 33278770), (4, 16639385), (5, 13311508), (7, 9508220), (10, 6655754), (14, 4754110), (20, 3327877), (28, 2377055), (35, 1901644), (70, 950822), (140, 475411), (199, 334460), (398, 167230), (796, 83615), (995, 66892), (1393, 47780), (1990, 33446), (2389, 27860), (2786, 23890), (3980, 16723), (4778, 13930), (5572, 11945), (6965, 9556)]