19775275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:951

約数の個数: 24

約数和(自身を含む): 26810784

約数和(自身を除く): 7035509

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 857, 923, 1775, 4285, 4615, 11141, 21425, 23075, 55705, 60847, 278525, 304235, 791011, 1521175, 3955055, 19775275]

約数ペア:

[(1, 19775275), (5, 3955055), (13, 1521175), (25, 791011), (65, 304235), (71, 278525), (325, 60847), (355, 55705), (857, 23075), (923, 21425), (1775, 11141), (4285, 4615)]