161874128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{778241}}^1$

素因数の和:778262

約数の個数: 20

約数和(自身を含む): 337757028

約数和(自身を除く): 175882900

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 778241, 1556482, 3112964, 6225928, 10117133, 12451856, 20234266, 40468532, 80937064, 161874128]

約数ペア:

[(1, 161874128), (2, 80937064), (4, 40468532), (8, 20234266), (13, 12451856), (16, 10117133), (26, 6225928), (52, 3112964), (104, 1556482), (208, 778241)]