161245780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{424331}}^1$

素因数の和:424359

約数の個数: 24

約数和(自身を含む): 356438880

約数和(自身を除く): 195193100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 424331, 848662, 1697324, 2121655, 4243310, 8062289, 8486620, 16124578, 32249156, 40311445, 80622890, 161245780]

約数ペア:

[(1, 161245780), (2, 80622890), (4, 40311445), (5, 32249156), (10, 16124578), (19, 8486620), (20, 8062289), (38, 4243310), (76, 2121655), (95, 1697324), (190, 848662), (380, 424331)]