216740720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{55291}}^1$

素因数の和:55318

約数の個数: 60

約数和(自身を含む): 586205784

約数和(自身を除く): 369465064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 55291, 110582, 221164, 276455, 387037, 442328, 552910, 774074, 884656, 1105820, 1548148, 1935185, 2211640, 2709259, 3096296, 3870370, 4423280, 5418518, 6192592, 7740740, 10837036, 13546295, 15481480, 21674072, 27092590, 30962960, 43348144, 54185180, 108370360, 216740720]

約数ペア:

[(1, 216740720), (2, 108370360), (4, 54185180), (5, 43348144), (7, 30962960), (8, 27092590), (10, 21674072), (14, 15481480), (16, 13546295), (20, 10837036), (28, 7740740), (35, 6192592), (40, 5418518), (49, 4423280), (56, 3870370), (70, 3096296), (80, 2709259), (98, 2211640), (112, 1935185), (140, 1548148), (196, 1105820), (245, 884656), (280, 774074), (392, 552910), (490, 442328), (560, 387037), (784, 276455), (980, 221164), (1960, 110582), (3920, 55291)]