20616180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26431}}^1$

素因数の和:26456

約数の個数: 48

約数和(自身を含む): 62168064

約数和(自身を除く): 41551884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26431, 52862, 79293, 105724, 132155, 158586, 264310, 317172, 343603, 396465, 528620, 687206, 792930, 1030809, 1374412, 1585860, 1718015, 2061618, 3436030, 4123236, 5154045, 6872060, 10308090, 20616180]

約数ペア:

[(1, 20616180), (2, 10308090), (3, 6872060), (4, 5154045), (5, 4123236), (6, 3436030), (10, 2061618), (12, 1718015), (13, 1585860), (15, 1374412), (20, 1030809), (26, 792930), (30, 687206), (39, 528620), (52, 396465), (60, 343603), (65, 317172), (78, 264310), (130, 158586), (156, 132155), (195, 105724), (260, 79293), (390, 52862), (780, 26431)]