2971820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1069}}^1$

素因数の和:1217

約数の個数: 24

約数和(自身を含む): 6291600

約数和(自身を除く): 3319780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1069, 1390, 2138, 2780, 4276, 5345, 10690, 21380, 148591, 297182, 594364, 742955, 1485910, 2971820]

約数ペア:

[(1, 2971820), (2, 1485910), (4, 742955), (5, 594364), (10, 297182), (20, 148591), (139, 21380), (278, 10690), (556, 5345), (695, 4276), (1069, 2780), (1390, 2138)]