171444620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{20959}}^1$

素因数の和:21377

約数の個数: 24

約数和(自身を含む): 360931200

約数和(自身を除く): 189486580

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 20959, 41918, 83836, 104795, 209590, 419180, 8572231, 17144462, 34288924, 42861155, 85722310, 171444620]

約数ペア:

[(1, 171444620), (2, 85722310), (4, 42861155), (5, 34288924), (10, 17144462), (20, 8572231), (409, 419180), (818, 209590), (1636, 104795), (2045, 83836), (4090, 41918), (8180, 20959)]