87970775

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1709}}^1$

素因数の和:1819

約数の個数: 24

約数和(自身を含む): 114501600

約数和(自身を除く): 26530825

約数列:

[1, 5, 25, 29, 71, 145, 355, 725, 1709, 1775, 2059, 8545, 10295, 42725, 49561, 51475, 121339, 247805, 606695, 1239025, 3033475, 3518831, 17594155, 87970775]

約数ペア:

[(1, 87970775), (5, 17594155), (25, 3518831), (29, 3033475), (71, 1239025), (145, 606695), (355, 247805), (725, 121339), (1709, 51475), (1775, 49561), (2059, 42725), (8545, 10295)]