16129780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 35392896

約数和(自身を除く): 19263116

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 307, 355, 370, 614, 710, 740, 1228, 1420, 1535, 2627, 3070, 5254, 6140, 10508, 11359, 13135, 21797, 22718, 26270, 43594, 45436, 52540, 56795, 87188, 108985, 113590, 217970, 227180, 435940, 806489, 1612978, 3225956, 4032445, 8064890, 16129780]

約数ペア:

[(1, 16129780), (2, 8064890), (4, 4032445), (5, 3225956), (10, 1612978), (20, 806489), (37, 435940), (71, 227180), (74, 217970), (142, 113590), (148, 108985), (185, 87188), (284, 56795), (307, 52540), (355, 45436), (370, 43594), (614, 26270), (710, 22718), (740, 21797), (1228, 13135), (1420, 11359), (1535, 10508), (2627, 6140), (3070, 5254)]