20375278

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:529

約数の個数: 48

約数和(自身を含む): 39817008

約数和(自身を除く): 19441730

約数列:

[1, 2, 7, 11, 14, 22, 41, 49, 77, 82, 98, 154, 287, 451, 461, 539, 574, 902, 922, 1078, 2009, 3157, 3227, 4018, 5071, 6314, 6454, 10142, 18901, 22099, 22589, 35497, 37802, 44198, 45178, 70994, 132307, 207911, 248479, 264614, 415822, 496958, 926149, 1455377, 1852298, 2910754, 10187639, 20375278]

約数ペア:

[(1, 20375278), (2, 10187639), (7, 2910754), (11, 1852298), (14, 1455377), (22, 926149), (41, 496958), (49, 415822), (77, 264614), (82, 248479), (98, 207911), (154, 132307), (287, 70994), (451, 45178), (461, 44198), (539, 37802), (574, 35497), (902, 22589), (922, 22099), (1078, 18901), (2009, 10142), (3157, 6454), (3227, 6314), (4018, 5071)]