25141720

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{2221}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 56794320

約数和(自身を除く): 31652600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2221, 2264, 2830, 4442, 5660, 8884, 11105, 11320, 17768, 22210, 44420, 88840, 628543, 1257086, 2514172, 3142715, 5028344, 6285430, 12570860, 25141720]

約数ペア:

[(1, 25141720), (2, 12570860), (4, 6285430), (5, 5028344), (8, 3142715), (10, 2514172), (20, 1257086), (40, 628543), (283, 88840), (566, 44420), (1132, 22210), (1415, 17768), (2221, 11320), (2264, 11105), (2830, 8884), (4442, 5660)]