64807025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 84369600

約数和(自身を除く): 19562575

約数列:

[1, 5, 25, 29, 71, 145, 355, 725, 1259, 1775, 2059, 6295, 10295, 31475, 36511, 51475, 89389, 182555, 446945, 912775, 2234725, 2592281, 12961405, 64807025]

約数ペア:

[(1, 64807025), (5, 12961405), (25, 2592281), (29, 2234725), (71, 912775), (145, 446945), (355, 182555), (725, 89389), (1259, 51475), (1775, 36511), (2059, 31475), (6295, 10295)]