1244487280

素因数分解:

$2^4\times 5^1\times {\mathrm{15556091}}^1$

素因数の和:15556104

約数の個数: 20

約数和(自身を含む): 2893433112

約数和(自身を除く): 1648945832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15556091, 31112182, 62224364, 77780455, 124448728, 155560910, 248897456, 311121820, 622243640, 1244487280]

約数ペア:

[(1, 1244487280), (2, 622243640), (4, 311121820), (5, 248897456), (8, 155560910), (10, 124448728), (16, 77780455), (20, 62224364), (40, 31112182), (80, 15556091)]