80710420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2897}}^1$

素因数の和:3112

約数の個数: 48

約数和(自身を含む): 194745600

約数和(自身を除く): 114035180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 2897, 3980, 5572, 5794, 6965, 11588, 13930, 14485, 20279, 27860, 28970, 40558, 57940, 81116, 101395, 202790, 405580, 576503, 1153006, 2306012, 2882515, 4035521, 5765030, 8071042, 11530060, 16142084, 20177605, 40355210, 80710420]

約数ペア:

[(1, 80710420), (2, 40355210), (4, 20177605), (5, 16142084), (7, 11530060), (10, 8071042), (14, 5765030), (20, 4035521), (28, 2882515), (35, 2306012), (70, 1153006), (140, 576503), (199, 405580), (398, 202790), (796, 101395), (995, 81116), (1393, 57940), (1990, 40558), (2786, 28970), (2897, 27860), (3980, 20279), (5572, 14485), (5794, 13930), (6965, 11588)]