808260625

素因数分解:

$5^4\times {\mathrm{331}}^1\times {\mathrm{3907}}^1$

素因数の和:4258

約数の個数: 20

約数和(自身を含む): 1013313136

約数和(自身を除く): 205052511

約数列:

[1, 5, 25, 125, 331, 625, 1655, 3907, 8275, 19535, 41375, 97675, 206875, 488375, 1293217, 2441875, 6466085, 32330425, 161652125, 808260625]

約数ペア:

[(1, 808260625), (5, 161652125), (25, 32330425), (125, 6466085), (331, 2441875), (625, 1293217), (1655, 488375), (3907, 206875), (8275, 97675), (19535, 41375)]