1640451880

素因数分解:

$2^3\times 5^1\times {\mathrm{41011297}}^1$

素因数の和:41011308

約数の個数: 16

約数和(自身を含む): 3691016820

約数和(自身を除く): 2050564940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41011297, 82022594, 164045188, 205056485, 328090376, 410112970, 820225940, 1640451880]

約数ペア:

[(1, 1640451880), (2, 820225940), (4, 410112970), (5, 328090376), (8, 205056485), (10, 164045188), (20, 82022594), (40, 41011297)]