16442980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43271}}^1$

素因数の和:43299

約数の個数: 24

約数和(自身を含む): 36348480

約数和(自身を除く): 19905500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 43271, 86542, 173084, 216355, 432710, 822149, 865420, 1644298, 3288596, 4110745, 8221490, 16442980]

約数ペア:

[(1, 16442980), (2, 8221490), (4, 4110745), (5, 3288596), (10, 1644298), (19, 865420), (20, 822149), (38, 432710), (76, 216355), (95, 173084), (190, 86542), (380, 43271)]