816145

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 1149120

約数和(自身を除く): 332975

約数列:

[1, 5, 11, 19, 55, 71, 95, 121, 209, 355, 605, 781, 1045, 1349, 2299, 3905, 6745, 8591, 11495, 14839, 42955, 74195, 163229, 816145]

約数ペア:

[(1, 816145), (5, 163229), (11, 74195), (19, 42955), (55, 14839), (71, 11495), (95, 8591), (121, 6745), (209, 3905), (355, 2299), (605, 1349), (781, 1045)]