19945125

素因数分解:

$3^2\times 5^3\times {\mathrm{17729}}^1$

素因数の和:17750

約数の個数: 24

約数和(自身を含む): 35956440

約数和(自身を除く): 16011315

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 17729, 53187, 88645, 159561, 265935, 443225, 797805, 1329675, 2216125, 3989025, 6648375, 19945125]

約数ペア:

[(1, 19945125), (3, 6648375), (5, 3989025), (9, 2216125), (15, 1329675), (25, 797805), (45, 443225), (75, 265935), (125, 159561), (225, 88645), (375, 53187), (1125, 17729)]