12722780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4783}}^1$

素因数の和:4818

約数の個数: 48

約数和(自身を含む): 32148480

約数和(自身を除く): 19425700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 4783, 9566, 19132, 23915, 33481, 47830, 66962, 90877, 95660, 133924, 167405, 181754, 334810, 363508, 454385, 636139, 669620, 908770, 1272278, 1817540, 2544556, 3180695, 6361390, 12722780]

約数ペア:

[(1, 12722780), (2, 6361390), (4, 3180695), (5, 2544556), (7, 1817540), (10, 1272278), (14, 908770), (19, 669620), (20, 636139), (28, 454385), (35, 363508), (38, 334810), (70, 181754), (76, 167405), (95, 133924), (133, 95660), (140, 90877), (190, 66962), (266, 47830), (380, 33481), (532, 23915), (665, 19132), (1330, 9566), (2660, 4783)]