89409820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{235289}}^1$

素因数の和:235317

約数の個数: 24

約数和(自身を含む): 197643600

約数和(自身を除く): 108233780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 235289, 470578, 941156, 1176445, 2352890, 4470491, 4705780, 8940982, 17881964, 22352455, 44704910, 89409820]

約数ペア:

[(1, 89409820), (2, 44704910), (4, 22352455), (5, 17881964), (10, 8940982), (19, 4705780), (20, 4470491), (38, 2352890), (76, 1176445), (95, 941156), (190, 470578), (380, 235289)]