20136580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2789}}^1$

素因数の和:2836

約数の個数: 36

約数和(自身を含む): 44645580

約数和(自身を除く): 24509000

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2789, 3610, 5578, 7220, 11156, 13945, 27890, 52991, 55780, 105982, 211964, 264955, 529910, 1006829, 1059820, 2013658, 4027316, 5034145, 10068290, 20136580]

約数ペア:

[(1, 20136580), (2, 10068290), (4, 5034145), (5, 4027316), (10, 2013658), (19, 1059820), (20, 1006829), (38, 529910), (76, 264955), (95, 211964), (190, 105982), (361, 55780), (380, 52991), (722, 27890), (1444, 13945), (1805, 11156), (2789, 7220), (3610, 5578)]