198295780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521831}}^1$

素因数の和:521859

約数の個数: 24

約数和(自身を含む): 438338880

約数和(自身を除く): 240043100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 521831, 1043662, 2087324, 2609155, 5218310, 9914789, 10436620, 19829578, 39659156, 49573945, 99147890, 198295780]

約数ペア:

[(1, 198295780), (2, 99147890), (4, 49573945), (5, 39659156), (10, 19829578), (19, 10436620), (20, 9914789), (38, 5218310), (76, 2609155), (95, 2087324), (190, 1043662), (380, 521831)]