168698740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{8669}}^1$

素因数の和:8824

約数の個数: 48

約数和(自身を含む): 407836800

約数和(自身を除く): 239138060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 8669, 9730, 17338, 19460, 34676, 43345, 60683, 86690, 121366, 173380, 242732, 303415, 606830, 1204991, 1213660, 2409982, 4819964, 6024955, 8434937, 12049910, 16869874, 24099820, 33739748, 42174685, 84349370, 168698740]

約数ペア:

[(1, 168698740), (2, 84349370), (4, 42174685), (5, 33739748), (7, 24099820), (10, 16869874), (14, 12049910), (20, 8434937), (28, 6024955), (35, 4819964), (70, 2409982), (139, 1213660), (140, 1204991), (278, 606830), (556, 303415), (695, 242732), (973, 173380), (1390, 121366), (1946, 86690), (2780, 60683), (3892, 43345), (4865, 34676), (8669, 19460), (9730, 17338)]