20986120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22811}}^1$

素因数の和:22845

約数の個数: 32

約数和(自身を含む): 49273920

約数和(自身を除く): 28287800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22811, 45622, 91244, 114055, 182488, 228110, 456220, 524653, 912440, 1049306, 2098612, 2623265, 4197224, 5246530, 10493060, 20986120]

約数ペア:

[(1, 20986120), (2, 10493060), (4, 5246530), (5, 4197224), (8, 2623265), (10, 2098612), (20, 1049306), (23, 912440), (40, 524653), (46, 456220), (92, 228110), (115, 182488), (184, 114055), (230, 91244), (460, 45622), (920, 22811)]