8591920

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{509}}^1$

素因数の和:733

約数の個数: 40

約数和(自身を含む): 20110320

約数和(自身を除く): 11518400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 509, 844, 1018, 1055, 1688, 2036, 2110, 2545, 3376, 4072, 4220, 5090, 8144, 8440, 10180, 16880, 20360, 40720, 107399, 214798, 429596, 536995, 859192, 1073990, 1718384, 2147980, 4295960, 8591920]

約数ペア:

[(1, 8591920), (2, 4295960), (4, 2147980), (5, 1718384), (8, 1073990), (10, 859192), (16, 536995), (20, 429596), (40, 214798), (80, 107399), (211, 40720), (422, 20360), (509, 16880), (844, 10180), (1018, 8440), (1055, 8144), (1688, 5090), (2036, 4220), (2110, 4072), (2545, 3376)]