163940120

素因数分解:

$2^3\times 5^1\times {\mathrm{4098503}}^1$

素因数の和:4098514

約数の個数: 16

約数和(自身を含む): 368865360

約数和(自身を除く): 204925240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4098503, 8197006, 16394012, 20492515, 32788024, 40985030, 81970060, 163940120]

約数ペア:

[(1, 163940120), (2, 81970060), (4, 40985030), (5, 32788024), (8, 20492515), (10, 16394012), (20, 8197006), (40, 4098503)]