85780940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3079}}^1$

素因数の和:3294

約数の個数: 48

約数和(自身を含む): 206976000

約数和(自身を除く): 121195060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3079, 3980, 5572, 6158, 6965, 12316, 13930, 15395, 21553, 27860, 30790, 43106, 61580, 86212, 107765, 215530, 431060, 612721, 1225442, 2450884, 3063605, 4289047, 6127210, 8578094, 12254420, 17156188, 21445235, 42890470, 85780940]

約数ペア:

[(1, 85780940), (2, 42890470), (4, 21445235), (5, 17156188), (7, 12254420), (10, 8578094), (14, 6127210), (20, 4289047), (28, 3063605), (35, 2450884), (70, 1225442), (140, 612721), (199, 431060), (398, 215530), (796, 107765), (995, 86212), (1393, 61580), (1990, 43106), (2786, 30790), (3079, 27860), (3980, 21553), (5572, 15395), (6158, 13930), (6965, 12316)]