87900590

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{20879}}^1$

素因数の和:21307

約数の個数: 16

約数和(自身を含む): 158604480

約数和(自身を除く): 70703890

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 20879, 41758, 104395, 208790, 8790059, 17580118, 43950295, 87900590]

約数ペア:

[(1, 87900590), (2, 43950295), (5, 17580118), (10, 8790059), (421, 208790), (842, 104395), (2105, 41758), (4210, 20879)]