13398325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 17791520

約数和(自身を除く): 4393195

約数列:

[1, 5, 19, 25, 67, 95, 335, 421, 475, 1273, 1675, 2105, 6365, 7999, 10525, 28207, 31825, 39995, 141035, 199975, 535933, 705175, 2679665, 13398325]

約数ペア:

[(1, 13398325), (5, 2679665), (19, 705175), (25, 535933), (67, 199975), (95, 141035), (335, 39995), (421, 31825), (475, 28207), (1273, 10525), (1675, 7999), (2105, 6365)]