221500720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{395537}}^1$

素因数の和:395557

約数の個数: 40

約数和(自身を含む): 588560544

約数和(自身を除く): 367059824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 395537, 791074, 1582148, 1977685, 2768759, 3164296, 3955370, 5537518, 6328592, 7910740, 11075036, 13843795, 15821480, 22150072, 27687590, 31642960, 44300144, 55375180, 110750360, 221500720]

約数ペア:

[(1, 221500720), (2, 110750360), (4, 55375180), (5, 44300144), (7, 31642960), (8, 27687590), (10, 22150072), (14, 15821480), (16, 13843795), (20, 11075036), (28, 7910740), (35, 6328592), (40, 5537518), (56, 3955370), (70, 3164296), (80, 2768759), (112, 1977685), (140, 1582148), (280, 791074), (560, 395537)]