81090225

素因数分解:

$3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{4937}}^1$

素因数の和:5026

約数の個数: 36

約数和(自身を含む): 147261036

約数和(自身を除く): 66170811

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 219, 225, 365, 657, 1095, 1825, 3285, 4937, 5475, 14811, 16425, 24685, 44433, 74055, 123425, 222165, 360401, 370275, 1081203, 1110825, 1802005, 3243609, 5406015, 9010025, 16218045, 27030075, 81090225]

約数ペア:

[(1, 81090225), (3, 27030075), (5, 16218045), (9, 9010025), (15, 5406015), (25, 3243609), (45, 1802005), (73, 1110825), (75, 1081203), (219, 370275), (225, 360401), (365, 222165), (657, 123425), (1095, 74055), (1825, 44433), (3285, 24685), (4937, 16425), (5475, 14811)]