18381190

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25889}}^1$

素因数の和:25967

約数の個数: 16

約数和(自身を含む): 33553440

約数和(自身を除く): 15172250

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 25889, 51778, 129445, 258890, 1838119, 3676238, 9190595, 18381190]

約数ペア:

[(1, 18381190), (2, 9190595), (5, 3676238), (10, 1838119), (71, 258890), (142, 129445), (355, 51778), (710, 25889)]