51331225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 36

約数和(自身を含む): 71245440

約数和(自身を除く): 19914215

約数列:

[1, 5, 11, 25, 55, 71, 121, 239, 275, 355, 605, 781, 1195, 1775, 2629, 3025, 3905, 5975, 8591, 13145, 16969, 19525, 28919, 42955, 65725, 84845, 144595, 186659, 214775, 424225, 722975, 933295, 2053249, 4666475, 10266245, 51331225]

約数ペア:

[(1, 51331225), (5, 10266245), (11, 4666475), (25, 2053249), (55, 933295), (71, 722975), (121, 424225), (239, 214775), (275, 186659), (355, 144595), (605, 84845), (781, 65725), (1195, 42955), (1775, 28919), (2629, 19525), (3025, 16969), (3905, 13145), (5975, 8591)]