1440805940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{20219}}^1$

素因数の和:20744

約数の個数: 48

約数和(自身を含む): 3464899200

約数和(自身を除く): 2024093260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 2036, 2545, 3563, 5090, 7126, 10180, 14252, 17815, 20219, 35630, 40438, 71260, 80876, 101095, 141533, 202190, 283066, 404380, 566132, 707665, 1415330, 2830660, 10291471, 20582942, 41165884, 51457355, 72040297, 102914710, 144080594, 205829420, 288161188, 360201485, 720402970, 1440805940]

約数ペア:

[(1, 1440805940), (2, 720402970), (4, 360201485), (5, 288161188), (7, 205829420), (10, 144080594), (14, 102914710), (20, 72040297), (28, 51457355), (35, 41165884), (70, 20582942), (140, 10291471), (509, 2830660), (1018, 1415330), (2036, 707665), (2545, 566132), (3563, 404380), (5090, 283066), (7126, 202190), (10180, 141533), (14252, 101095), (17815, 80876), (20219, 71260), (35630, 40438)]