128081240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{457433}}^1$

素因数の和:457451

約数の個数: 32

約数和(自身を含む): 329352480

約数和(自身を除く): 201271240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 457433, 914866, 1829732, 2287165, 3202031, 3659464, 4574330, 6404062, 9148660, 12808124, 16010155, 18297320, 25616248, 32020310, 64040620, 128081240]

約数ペア:

[(1, 128081240), (2, 64040620), (4, 32020310), (5, 25616248), (7, 18297320), (8, 16010155), (10, 12808124), (14, 9148660), (20, 6404062), (28, 4574330), (35, 3659464), (40, 3202031), (56, 2287165), (70, 1829732), (140, 914866), (280, 457433)]