666059890

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{158209}}^1$

素因数の和:158637

約数の個数: 16

約数和(自身を含む): 1201763160

約数和(自身を除く): 535703270

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 158209, 316418, 791045, 1582090, 66605989, 133211978, 333029945, 666059890]

約数ペア:

[(1, 666059890), (2, 333029945), (5, 133211978), (10, 66605989), (421, 1582090), (842, 791045), (2105, 316418), (4210, 158209)]