19395020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{439}}^1$

素因数の和:542

約数の個数: 36

約数和(自身を含む): 41709360

約数和(自身を除く): 22314340

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 439, 470, 878, 940, 1756, 2195, 2209, 4390, 4418, 8780, 8836, 11045, 20633, 22090, 41266, 44180, 82532, 103165, 206330, 412660, 969751, 1939502, 3879004, 4848755, 9697510, 19395020]

約数ペア:

[(1, 19395020), (2, 9697510), (4, 4848755), (5, 3879004), (10, 1939502), (20, 969751), (47, 412660), (94, 206330), (188, 103165), (235, 82532), (439, 44180), (470, 41266), (878, 22090), (940, 20633), (1756, 11045), (2195, 8836), (2209, 8780), (4390, 4418)]