19129940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{433}}^1$

素因数の和:536

約数の個数: 36

約数和(自身を含む): 41140596

約数和(自身を除く): 22010656

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 433, 470, 866, 940, 1732, 2165, 2209, 4330, 4418, 8660, 8836, 11045, 20351, 22090, 40702, 44180, 81404, 101755, 203510, 407020, 956497, 1912994, 3825988, 4782485, 9564970, 19129940]

約数ペア:

[(1, 19129940), (2, 9564970), (4, 4782485), (5, 3825988), (10, 1912994), (20, 956497), (47, 407020), (94, 203510), (188, 101755), (235, 81404), (433, 44180), (470, 40702), (866, 22090), (940, 20351), (1732, 11045), (2165, 8836), (2209, 8660), (4330, 4418)]