128804960

素因数分解:

$2^5\times 5^1\times {\mathrm{805031}}^1$

素因数の和:805046

約数の個数: 24

約数和(自身を含む): 304302096

約数和(自身を除く): 175497136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 805031, 1610062, 3220124, 4025155, 6440248, 8050310, 12880496, 16100620, 25760992, 32201240, 64402480, 128804960]

約数ペア:

[(1, 128804960), (2, 64402480), (4, 32201240), (5, 25760992), (8, 16100620), (10, 12880496), (16, 8050310), (20, 6440248), (32, 4025155), (40, 3220124), (80, 1610062), (160, 805031)]