26689880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{479}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 69120000

約数和(自身を除く): 42430120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 479, 796, 958, 995, 1393, 1592, 1916, 1990, 2395, 2786, 3353, 3832, 3980, 4790, 5572, 6706, 6965, 7960, 9580, 11144, 13412, 13930, 16765, 19160, 26824, 27860, 33530, 55720, 67060, 95321, 134120, 190642, 381284, 476605, 667247, 762568, 953210, 1334494, 1906420, 2668988, 3336235, 3812840, 5337976, 6672470, 13344940, 26689880]

約数ペア:

[(1, 26689880), (2, 13344940), (4, 6672470), (5, 5337976), (7, 3812840), (8, 3336235), (10, 2668988), (14, 1906420), (20, 1334494), (28, 953210), (35, 762568), (40, 667247), (56, 476605), (70, 381284), (140, 190642), (199, 134120), (280, 95321), (398, 67060), (479, 55720), (796, 33530), (958, 27860), (995, 26824), (1393, 19160), (1592, 16765), (1916, 13930), (1990, 13412), (2395, 11144), (2786, 9580), (3353, 7960), (3832, 6965), (3980, 6706), (4790, 5572)]