18078040

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1597}}^1$

素因数の和:1891

約数の個数: 32

約数和(自身を含む): 40844880

約数和(自身を除く): 22766840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 1597, 2264, 2830, 3194, 5660, 6388, 7985, 11320, 12776, 15970, 31940, 63880, 451951, 903902, 1807804, 2259755, 3615608, 4519510, 9039020, 18078040]

約数ペア:

[(1, 18078040), (2, 9039020), (4, 4519510), (5, 3615608), (8, 2259755), (10, 1807804), (20, 903902), (40, 451951), (283, 63880), (566, 31940), (1132, 15970), (1415, 12776), (1597, 11320), (2264, 7985), (2830, 6388), (3194, 5660)]