89391020

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{4483}}^1$

素因数の和:5489

約数の個数: 24

約数和(自身を含む): 187951344

約数和(自身を除く): 98560324

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4483, 4985, 8966, 9970, 17932, 19940, 22415, 44830, 89660, 4469551, 8939102, 17878204, 22347755, 44695510, 89391020]

約数ペア:

[(1, 89391020), (2, 44695510), (4, 22347755), (5, 17878204), (10, 8939102), (20, 4469551), (997, 89660), (1994, 44830), (3988, 22415), (4483, 19940), (4985, 17932), (8966, 9970)]