18090445

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:596

約数の個数: 16

約数和(自身を含む): 22239360

約数和(自身を除く): 4148915

約数列:

[1, 5, 71, 131, 355, 389, 655, 1945, 9301, 27619, 46505, 50959, 138095, 254795, 3618089, 18090445]

約数ペア:

[(1, 18090445), (5, 3618089), (71, 254795), (131, 138095), (355, 50959), (389, 46505), (655, 27619), (1945, 9301)]