25481320

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{2251}}^1$

素因数の和:2545

約数の個数: 32

約数和(自身を含む): 57561120

約数和(自身を除く): 32079800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2251, 2264, 2830, 4502, 5660, 9004, 11255, 11320, 18008, 22510, 45020, 90040, 637033, 1274066, 2548132, 3185165, 5096264, 6370330, 12740660, 25481320]

約数ペア:

[(1, 25481320), (2, 12740660), (4, 6370330), (5, 5096264), (8, 3185165), (10, 2548132), (20, 1274066), (40, 637033), (283, 90040), (566, 45020), (1132, 22510), (1415, 18008), (2251, 11320), (2264, 11255), (2830, 9004), (4502, 5660)]