19294480

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{557}}^1$

素因数の和:1003

約数の個数: 40

約数和(自身を含む): 45043992

約数和(自身を除く): 25749512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 557, 866, 1114, 1732, 2165, 2228, 2785, 3464, 4330, 4456, 5570, 6928, 8660, 8912, 11140, 17320, 22280, 34640, 44560, 241181, 482362, 964724, 1205905, 1929448, 2411810, 3858896, 4823620, 9647240, 19294480]

約数ペア:

[(1, 19294480), (2, 9647240), (4, 4823620), (5, 3858896), (8, 2411810), (10, 1929448), (16, 1205905), (20, 964724), (40, 482362), (80, 241181), (433, 44560), (557, 34640), (866, 22280), (1114, 17320), (1732, 11140), (2165, 8912), (2228, 8660), (2785, 6928), (3464, 5570), (4330, 4456)]