1990609520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1081853}}^1$

素因数の和:1081889

約数の個数: 40

約数和(自身を含む): 4829396256

約数和(自身を除く): 2838786736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 1081853, 2163706, 4327412, 5409265, 8654824, 10818530, 17309648, 21637060, 24882619, 43274120, 49765238, 86548240, 99530476, 124413095, 199060952, 248826190, 398121904, 497652380, 995304760, 1990609520]

約数ペア:

[(1, 1990609520), (2, 995304760), (4, 497652380), (5, 398121904), (8, 248826190), (10, 199060952), (16, 124413095), (20, 99530476), (23, 86548240), (40, 49765238), (46, 43274120), (80, 24882619), (92, 21637060), (115, 17309648), (184, 10818530), (230, 8654824), (368, 5409265), (460, 4327412), (920, 2163706), (1840, 1081853)]