12580515

素因数分解:

$3^4\times 5^1\times {\mathrm{31063}}^1$

素因数の和:31080

約数の個数: 20

約数和(自身を含む): 22552464

約数和(自身を除く): 9971949

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31063, 93189, 155315, 279567, 465945, 838701, 1397835, 2516103, 4193505, 12580515]

約数ペア:

[(1, 12580515), (3, 4193505), (5, 2516103), (9, 1397835), (15, 838701), (27, 465945), (45, 279567), (81, 155315), (135, 93189), (405, 31063)]