7742980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{7901}}^1$

素因数の和:7924

約数の個数: 36

約数和(自身を含む): 18917388

約数和(自身を除く): 11174408

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 7901, 15802, 31604, 39505, 55307, 79010, 110614, 158020, 221228, 276535, 387149, 553070, 774298, 1106140, 1548596, 1935745, 3871490, 7742980]

約数ペア:

[(1, 7742980), (2, 3871490), (4, 1935745), (5, 1548596), (7, 1106140), (10, 774298), (14, 553070), (20, 387149), (28, 276535), (35, 221228), (49, 158020), (70, 110614), (98, 79010), (140, 55307), (196, 39505), (245, 31604), (490, 15802), (980, 7901)]