20746770160

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{734659}}^1$

素因数の和:735025

約数の個数: 40

約数和(自身を含む): 48372953040

約数和(自身を除く): 27626182880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1412, 1765, 2824, 3530, 5648, 7060, 14120, 28240, 734659, 1469318, 2938636, 3673295, 5877272, 7346590, 11754544, 14693180, 29386360, 58772720, 259334627, 518669254, 1037338508, 1296673135, 2074677016, 2593346270, 4149354032, 5186692540, 10373385080, 20746770160]

約数ペア:

[(1, 20746770160), (2, 10373385080), (4, 5186692540), (5, 4149354032), (8, 2593346270), (10, 2074677016), (16, 1296673135), (20, 1037338508), (40, 518669254), (80, 259334627), (353, 58772720), (706, 29386360), (1412, 14693180), (1765, 11754544), (2824, 7346590), (3530, 5877272), (5648, 3673295), (7060, 2938636), (14120, 1469318), (28240, 734659)]