19302280

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2287}}^1$

素因数の和:2509

約数の個数: 32

約数和(自身を含む): 43655040

約数和(自身を除く): 24352760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2287, 4220, 4574, 8440, 9148, 11435, 18296, 22870, 45740, 91480, 482557, 965114, 1930228, 2412785, 3860456, 4825570, 9651140, 19302280]

約数ペア:

[(1, 19302280), (2, 9651140), (4, 4825570), (5, 3860456), (8, 2412785), (10, 1930228), (20, 965114), (40, 482557), (211, 91480), (422, 45740), (844, 22870), (1055, 18296), (1688, 11435), (2110, 9148), (2287, 8440), (4220, 4574)]