129682480

素因数分解:

$2^4\times 5^1\times {\mathrm{1621031}}^1$

素因数の和:1621044

約数の個数: 20

約数和(自身を含む): 301511952

約数和(自身を除く): 171829472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1621031, 3242062, 6484124, 8105155, 12968248, 16210310, 25936496, 32420620, 64841240, 129682480]

約数ペア:

[(1, 129682480), (2, 64841240), (4, 32420620), (5, 25936496), (8, 16210310), (10, 12968248), (16, 8105155), (20, 6484124), (40, 3242062), (80, 1621031)]