168179920

素因数分解:

$2^4\times 5^1\times {\mathrm{2102249}}^1$

素因数の和:2102262

約数の個数: 20

約数和(自身を含む): 391018500

約数和(自身を除く): 222838580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2102249, 4204498, 8408996, 10511245, 16817992, 21022490, 33635984, 42044980, 84089960, 168179920]

約数ペア:

[(1, 168179920), (2, 84089960), (4, 42044980), (5, 33635984), (8, 21022490), (10, 16817992), (16, 10511245), (20, 8408996), (40, 4204498), (80, 2102249)]