20161240840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38771617}}^1$

素因数の和:38771641

約数の個数: 32

約数和(自身を含む): 48852238680

約数和(自身を除く): 28690997840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38771617, 77543234, 155086468, 193858085, 310172936, 387716170, 504031021, 775432340, 1008062042, 1550864680, 2016124084, 2520155105, 4032248168, 5040310210, 10080620420, 20161240840]

約数ペア:

[(1, 20161240840), (2, 10080620420), (4, 5040310210), (5, 4032248168), (8, 2520155105), (10, 2016124084), (13, 1550864680), (20, 1008062042), (26, 775432340), (40, 504031021), (52, 387716170), (65, 310172936), (104, 193858085), (130, 155086468), (260, 77543234), (520, 38771617)]