18426940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18803}}^1$

素因数の和:18826

約数の個数: 36

約数和(自身を含む): 45016776

約数和(自身を除く): 26589836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18803, 37606, 75212, 94015, 131621, 188030, 263242, 376060, 526484, 658105, 921347, 1316210, 1842694, 2632420, 3685388, 4606735, 9213470, 18426940]

約数ペア:

[(1, 18426940), (2, 9213470), (4, 4606735), (5, 3685388), (7, 2632420), (10, 1842694), (14, 1316210), (20, 921347), (28, 658105), (35, 526484), (49, 376060), (70, 263242), (98, 188030), (140, 131621), (196, 94015), (245, 75212), (490, 37606), (980, 18803)]