16181820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89899}}^1$

素因数の和:89914

約数の個数: 36

約数和(自身を含む): 49085400

約数和(自身を除く): 32903580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 89899, 179798, 269697, 359596, 449495, 539394, 809091, 898990, 1078788, 1348485, 1618182, 1797980, 2696970, 3236364, 4045455, 5393940, 8090910, 16181820]

約数ペア:

[(1, 16181820), (2, 8090910), (3, 5393940), (4, 4045455), (5, 3236364), (6, 2696970), (9, 1797980), (10, 1618182), (12, 1348485), (15, 1078788), (18, 898990), (20, 809091), (30, 539394), (36, 449495), (45, 359596), (60, 269697), (90, 179798), (180, 89899)]