180147280

素因数分解:

$2^4\times 5^1\times {\mathrm{2251841}}^1$

素因数の和:2251854

約数の個数: 20

約数和(自身を含む): 418842612

約数和(自身を除く): 238695332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2251841, 4503682, 9007364, 11259205, 18014728, 22518410, 36029456, 45036820, 90073640, 180147280]

約数ペア:

[(1, 180147280), (2, 90073640), (4, 45036820), (5, 36029456), (8, 22518410), (10, 18014728), (16, 11259205), (20, 9007364), (40, 4503682), (80, 2251841)]