128450778

素因数分解:

$2^1\times 3^1\times {\mathrm{263}}^1\times {\mathrm{81401}}^1$

素因数の和:81669

約数の個数: 16

約数和(自身を含む): 257881536

約数和(自身を除く): 129430758

約数列:

[1, 2, 3, 6, 263, 526, 789, 1578, 81401, 162802, 244203, 488406, 21408463, 42816926, 64225389, 128450778]

約数ペア:

[(1, 128450778), (2, 64225389), (3, 42816926), (6, 21408463), (263, 488406), (526, 244203), (789, 162802), (1578, 81401)]