19000040

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1097}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 42887880

約数和(自身を除く): 23887840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1097, 1732, 2165, 2194, 3464, 4330, 4388, 5485, 8660, 8776, 10970, 17320, 21940, 43880, 475001, 950002, 1900004, 2375005, 3800008, 4750010, 9500020, 19000040]

約数ペア:

[(1, 19000040), (2, 9500020), (4, 4750010), (5, 3800008), (8, 2375005), (10, 1900004), (20, 950002), (40, 475001), (433, 43880), (866, 21940), (1097, 17320), (1732, 10970), (2165, 8776), (2194, 8660), (3464, 5485), (4330, 4388)]