80516720

素因数分解:

$2^4\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1217}}^1$

素因数の和:2057

約数の個数: 40

約数和(自身を含む): 187581744

約数和(自身を除く): 107065024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 827, 1217, 1654, 2434, 3308, 4135, 4868, 6085, 6616, 8270, 9736, 12170, 13232, 16540, 19472, 24340, 33080, 48680, 66160, 97360, 1006459, 2012918, 4025836, 5032295, 8051672, 10064590, 16103344, 20129180, 40258360, 80516720]

約数ペア:

[(1, 80516720), (2, 40258360), (4, 20129180), (5, 16103344), (8, 10064590), (10, 8051672), (16, 5032295), (20, 4025836), (40, 2012918), (80, 1006459), (827, 97360), (1217, 66160), (1654, 48680), (2434, 33080), (3308, 24340), (4135, 19472), (4868, 16540), (6085, 13232), (6616, 12170), (8270, 9736)]