988780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3803}}^1$

素因数の和:3825

約数の個数: 24

約数和(自身を含む): 2236752

約数和(自身を除く): 1247972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3803, 7606, 15212, 19015, 38030, 49439, 76060, 98878, 197756, 247195, 494390, 988780]

約数ペア:

[(1, 988780), (2, 494390), (4, 247195), (5, 197756), (10, 98878), (13, 76060), (20, 49439), (26, 38030), (52, 19015), (65, 15212), (130, 7606), (260, 3803)]