78162980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{558307}}^1$

素因数の和:558323

約数の個数: 24

約数和(自身を含む): 187591488

約数和(自身を除く): 109428508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 558307, 1116614, 2233228, 2791535, 3908149, 5583070, 7816298, 11166140, 15632596, 19540745, 39081490, 78162980]

約数ペア:

[(1, 78162980), (2, 39081490), (4, 19540745), (5, 15632596), (7, 11166140), (10, 7816298), (14, 5583070), (20, 3908149), (28, 2791535), (35, 2233228), (70, 1116614), (140, 558307)]