20219080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72211}}^1$

素因数の和:72229

約数の個数: 32

約数和(自身を含む): 51992640

約数和(自身を除く): 31773560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72211, 144422, 288844, 361055, 505477, 577688, 722110, 1010954, 1444220, 2021908, 2527385, 2888440, 4043816, 5054770, 10109540, 20219080]

約数ペア:

[(1, 20219080), (2, 10109540), (4, 5054770), (5, 4043816), (7, 2888440), (8, 2527385), (10, 2021908), (14, 1444220), (20, 1010954), (28, 722110), (35, 577688), (40, 505477), (56, 361055), (70, 288844), (140, 144422), (280, 72211)]