78465940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560471}}^1$

素因数の和:560487

約数の個数: 24

約数和(自身を含む): 188318592

約数和(自身を除く): 109852652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560471, 1120942, 2241884, 2802355, 3923297, 5604710, 7846594, 11209420, 15693188, 19616485, 39232970, 78465940]

約数ペア:

[(1, 78465940), (2, 39232970), (4, 19616485), (5, 15693188), (7, 11209420), (10, 7846594), (14, 5604710), (20, 3923297), (28, 2802355), (35, 2241884), (70, 1120942), (140, 560471)]