129278540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{380231}}^1$

素因数の和:380257

約数の個数: 24

約数和(自身を含む): 287455392

約数和(自身を除く): 158176852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 380231, 760462, 1520924, 1901155, 3802310, 6463927, 7604620, 12927854, 25855708, 32319635, 64639270, 129278540]

約数ペア:

[(1, 129278540), (2, 64639270), (4, 32319635), (5, 25855708), (10, 12927854), (17, 7604620), (20, 6463927), (34, 3802310), (68, 1901155), (85, 1520924), (170, 760462), (340, 380231)]