4080725

素因数分解:

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

素因数の和:122

約数の個数: 36

約数和(自身を含む): 5937120

約数和(自身を除く): 1856395

約数列:

[1, 5, 11, 19, 25, 55, 71, 95, 121, 209, 275, 355, 475, 605, 781, 1045, 1349, 1775, 2299, 3025, 3905, 5225, 6745, 8591, 11495, 14839, 19525, 33725, 42955, 57475, 74195, 163229, 214775, 370975, 816145, 4080725]

約数ペア:

[(1, 4080725), (5, 816145), (11, 370975), (19, 214775), (25, 163229), (55, 74195), (71, 57475), (95, 42955), (121, 33725), (209, 19525), (275, 14839), (355, 11495), (475, 8591), (605, 6745), (781, 5225), (1045, 3905), (1349, 3025), (1775, 2299)]