61487020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2207}}^1$

素因数の和:2422

約数の個数: 48

約数和(自身を含む): 148377600

約数和(自身を除く): 86890580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2207, 2786, 3980, 4414, 5572, 6965, 8828, 11035, 13930, 15449, 22070, 27860, 30898, 44140, 61796, 77245, 154490, 308980, 439193, 878386, 1756772, 2195965, 3074351, 4391930, 6148702, 8783860, 12297404, 15371755, 30743510, 61487020]

約数ペア:

[(1, 61487020), (2, 30743510), (4, 15371755), (5, 12297404), (7, 8783860), (10, 6148702), (14, 4391930), (20, 3074351), (28, 2195965), (35, 1756772), (70, 878386), (140, 439193), (199, 308980), (398, 154490), (796, 77245), (995, 61796), (1393, 44140), (1990, 30898), (2207, 27860), (2786, 22070), (3980, 15449), (4414, 13930), (5572, 11035), (6965, 8828)]