20515080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7433}}^1$

素因数の和:7470

約数の個数: 64

約数和(自身を含む): 64229760

約数和(自身を除く): 43714680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7433, 14866, 22299, 29732, 37165, 44598, 59464, 74330, 89196, 111495, 148660, 170959, 178392, 222990, 297320, 341918, 445980, 512877, 683836, 854795, 891960, 1025754, 1367672, 1709590, 2051508, 2564385, 3419180, 4103016, 5128770, 6838360, 10257540, 20515080]

約数ペア:

[(1, 20515080), (2, 10257540), (3, 6838360), (4, 5128770), (5, 4103016), (6, 3419180), (8, 2564385), (10, 2051508), (12, 1709590), (15, 1367672), (20, 1025754), (23, 891960), (24, 854795), (30, 683836), (40, 512877), (46, 445980), (60, 341918), (69, 297320), (92, 222990), (115, 178392), (120, 170959), (138, 148660), (184, 111495), (230, 89196), (276, 74330), (345, 59464), (460, 44598), (552, 37165), (690, 29732), (920, 22299), (1380, 14866), (2760, 7433)]